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        "titulo" => "Resumen"
        "resumen" => "<span class="elsevierStyleSectionTitle">Pacientes y m&#233;todos</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Se analiza de forma retrospectiva el resultado cl&#237;nico de una serie consecutiva de 53 pacientes afectos de mielopat&#237;a o mielorradiculopat&#237;a cervical que fueron intervenidos mediante discectom&#237;a cervical y artrodesis por v&#237;a anterior utilizando la t&#233;cnica de Cloward&#44; con un seguimiento medio de 3 a&#241;os&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">El 64&#46;2&#37; de los pacientes se benefici&#243; del tratamiento quir&#250;rgico&#44; mejorando en uno o m&#225;s grados en la escala de Nurick&#46; No se produjo mortalidad&#44; aunque apareci&#243; deterioro neurol&#243;gico en el 9&#46;4&#37; de los casos&#46; Se objetiv&#243; una correcta fusi&#243;n de los segmentos intervenidos en el 92&#46;5&#37; de las cirug&#237;as&#44; desarrollando un 9&#46;4&#37; de los enfermos cifosis postquir&#250;rgica&#46; En el an&#225;lisis multivariante se identificaron como factores relacionados con el resultado cl&#237;nico&#58; edad &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;008&#41;&#44; presencia de factores de riesgo vascular &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;031&#41;&#44; duraci&#243;n de la cl&#237;nica &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;002&#41;&#44; estado neurol&#243;gico prequir&#250;rgico &#40;p<span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>0&#46;001&#41;&#44; diagn&#243;stico neurorradiol&#243;gico &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;014&#41;&#44; presencia de hiperse&#241;al intramedular en las secuencias de resonancia magn&#233;tica potenciadas en T2 &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;008&#41;&#44; alteraci&#243;n de la conducci&#243;n medular en el estudio neurofisiol&#243;gico &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;004&#41; y desarrollo de complicaciones quir&#250;rgicas &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;012&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Dadas las discrepancias existentes en la actualidad&#44; la optimizaci&#243;n del tratamiento de estos pacientes pasa por una valoraci&#243;n individualizada&#44; y por la realizaci&#243;n de estudios prospectivos y randomizados que respondan a las preguntas cu&#225;ndo y c&#243;mo operar&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Patients and methods</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">We perform a retrospective analysis of clinical results in 53 consecutive patients surgically treated for cervical myelopathy or myelo-radiculopathy with anterior cervical discectomy and interbody fusi&#243;n by means of the Cloward procedure&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">64&#46;2&#37; of the patients had good outcome as measured by the improvement in one or more grades in the Nurick&#39;s scale&#46; No mortality related to the surgical procedure was noted&#44; although 9&#46;4&#37; of the cases suffered neurological deterioration&#46; Correct fusi&#243;n was achieved in 92&#46;5&#37; of the patients&#44; with a rate of post-surgical kyphosis of 9&#46;4&#37;&#46; Multivariate analysis identified as factors related to the clinical outcome&#58; age &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;008&#41;&#44; vascular risk factors &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;031&#41;&#44; duration of symptoms &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;002&#41;&#44; pre-surgical neurological status &#40;p<span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>0&#46;001&#41;&#44; neuroradiological diagnosis &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;014&#41;&#44; intramedullary high signal intensity changes in T2-weighted images &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;008&#41;&#44; prolongation of the central somatosensory or motor conduction times &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;004&#41; and neurologic complications &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;012&#41;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Treatment optimisation of the patient suffering cervical spondylotic myelopathy requires individualised evaluation&#46; Prospective randomised studies are needed to answer the questions when and how to op&#233;rate&#46;</p>"
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                            0 => "O&#46; al Mefty"
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                            3 => "D&#46;E&#46; Haines"
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                        "paginaFinal" => "561"
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                            2 => "S&#46; Imura"
                            3 => "N&#46; Kawahara"
                            4 => "K&#46; Tomita"
                          ]
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                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
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                        "tituloSerie" => "Paraplegia"
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                        "paginaInicial" => "100"
                        "paginaFinal" => "106"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8835035"
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                      "titulo" => "The valu&#233; of somatosensory- and motor-evoked potentials in predicting and monitoring the effect of therapy in spondylotic cervical myelopathy&#46; Prospective randomized study"
                      "autores" => array:1 [
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                          "autores" => array:6 [
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                            4 => "O&#46; Vlach"
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                    ]
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                        "paginaInicial" => "1593"
                        "paginaFinal" => "1598"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10457580"
                            "web" => "Medline"
                          ]
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                        "tituloSerie" => "J Spinal Disord"
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                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Clin Orthop"
                        "fecha" => "1987"
                        "volumen" => "221"
                        "paginaInicial" => "149"
                        "paginaFinal" => "157"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/3608294"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            5 => array:3 [
              "identificador" => "bib6"
              "etiqueta" => "6&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Clinical long-term results of anterior discectomy without fusi&#243;n for treatment of cervical radiculopathy and myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "H&#46; Bertalanffy"
                            1 => "H&#46;R&#46; Eggert"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Acta Neurochir &#40;Wien&#41;"
                        "fecha" => "1988"
                        "volumen" => "90"
                        "paginaInicial" => "127"
                        "paginaFinal" => "135"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            6 => array:3 [
              "identificador" => "bib7"
              "etiqueta" => "7&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical spondylosis and myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "H&#46;H&#46; Bohlman"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Instr Course Lect"
                        "fecha" => "1995"
                        "volumen" => "44"
                        "paginaInicial" => "81"
                        "paginaFinal" => "97"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/7797895"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            7 => array:3 [
              "identificador" => "bib8"
              "etiqueta" => "8&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical spondylosis&#46; Prognostic valu&#233; of preoperative signs and symptoms"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "R&#46;A&#46; Brandt"
                            1 => "C&#46;A&#46; Fager"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "ArqNeuropsiquiatr"
                        "fecha" => "1976"
                        "volumen" => "34"
                        "paginaInicial" => "32"
                        "paginaFinal" => "39"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            8 => array:3 [
              "identificador" => "bib9"
              "etiqueta" => "9&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Viscoelastic relaxation and regional blood flow response to spinal cord compression and decompression"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "G&#46;D&#46; Carlson"
                            1 => "K&#46;E&#46; Warden"
                            2 => "J&#46;M&#46; Barbeau"
                            3 => "E&#46; Bahniuk"
                            4 => "K&#46;L&#46; Kutina-Nelson"
                            5 => "C&#46;L&#46; Biro"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1997"
                        "volumen" => "22"
                        "paginaInicial" => "1285"
                        "paginaFinal" => "1291"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9201829"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            9 => array:3 [
              "identificador" => "bib10"
              "etiqueta" => "10&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Predictability of surgical results of herniated disc-induced cervical myelopathy based on spinal cord motor conduction study"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "C&#46;W&#46; Chang"
                            1 => "S&#46;M&#46; Lin"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurosurg Rev"
                        "fecha" => "1999"
                        "volumen" => "22"
                        "paginaInicial" => "107"
                        "paginaFinal" => "111"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10547008"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            10 => array:3 [
              "identificador" => "bib11"
              "etiqueta" => "11&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Intramedullary high signal intensity on T2-weighted MR images in cervical spondylotic myelopathy&#58; prediction of prognosis with type of intensity"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "C&#46;J&#46; Chen"
                            1 => "R&#46;K&#46; Lyu"
                            2 => "S&#46;T&#46; Lee"
                            3 => "Y&#46;C&#46; Wong"
                            4 => "L&#46;J&#46; Wang"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1148/radiol.2213010365"
                      "Revista" => array:6 [
                        "tituloSerie" => "Radiology"
                        "fecha" => "2001"
                        "volumen" => "221"
                        "paginaInicial" => "789"
                        "paginaFinal" => "794"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11719680"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            11 => array:3 [
              "identificador" => "bib12"
              "etiqueta" => "12&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical spondylotic myelopathy&#58; patterns of neurological d&#233;ficit and recovery after anterior cervical decompression"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "B&#46;W&#46; Chiles 3d"
                            1 => "M&#46;A&#46; Leonard"
                            2 => "H&#46;F&#46; Choudhri"
                            3 => "P&#46;R&#46; Cooper"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurosurgery"
                        "fecha" => "1999"
                        "volumen" => "44"
                        "paginaInicial" => "762"
                        "paginaFinal" => "770"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10201301"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            12 => array:3 [
              "identificador" => "bib13"
              "etiqueta" => "13&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical spondylotic myelopathy&#58; History andphysicalfindings"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "C&#46;R&#46; Clark"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1988"
                        "volumen" => "13"
                        "paginaInicial" => "847"
                        "paginaFinal" => "849"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/3194794"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            13 => array:3 [
              "identificador" => "bib14"
              "etiqueta" => "14&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Tratamiento quir&#250;rgico de la mielopat&#237;a cervical espondiloartr&#243;sica"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "M&#46; Clavel-Escribano"
                            1 => "P&#46; Clavel-Laria"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Neurocirugia"
                        "fecha" => "1996"
                        "volumen" => "7"
                        "paginaInicial" => "4"
                        "paginaFinal" => "10"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            14 => array:3 [
              "identificador" => "bib15"
              "etiqueta" => "15&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Surgical treatment for cervical spondylitic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "M&#46;J&#46; Ebersold"
                            1 => "M&#46;C&#46; Pare"
                            2 => "L&#46;M&#46; Quast"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Surg Radiol Anat"
                        "fecha" => "1995"
                        "volumen" => "82"
                        "paginaInicial" => "745"
                        "paginaFinal" => "751"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            15 => array:3 [
              "identificador" => "bib16"
              "etiqueta" => "16&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Corpectomy versus laminoplasty for multilevel cervical myelopathy&#58; an independent matched-cohort analysis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "C&#46;C&#46; Edwards"
                            1 => "J&#46;G&#46; Heller"
                            2 => "H&#46; Murakami"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "2002"
                        "volumen" => "27"
                        "paginaInicial" => "1168"
                        "paginaFinal" => "1175"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/12045513"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            16 => array:3 [
              "identificador" => "bib17"
              "etiqueta" => "17&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Anterior cervical decompression and arthrodesis for the treatment of cervical spondylotic myelopathy&#46; Two to seventeen-year follow-up"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "S&#46;E&#46; Emery"
                            1 => "H&#46;H&#46; Bohlman"
                            2 => "M&#46;J&#46; Bolesta"
                            3 => "P&#46;K&#46; Jones"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "J Bone Joint Surg Am"
                        "fecha" => "1998"
                        "volumen" => "80"
                        "paginaInicial" => "941"
                        "paginaFinal" => "951"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9697998"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            17 => array:3 [
              "identificador" => "bib18"
              "etiqueta" => "18&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Surgery for cervical radiculomyelopathy &#40;Cochrane Review&#41;"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "I&#46;P&#46; Fouyas"
                            1 => "P&#46;F&#46; Statham"
                            2 => "P&#46;A&#46; Sandercock"
                            3 => "C&#46; Lynch"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1002/14651858.CD001466"
                      "Revista" => array:5 [
                        "tituloSerie" => "Cochrane&#46; Dat&#225;base&#46; Syst&#46; Rev&#46;"
                        "fecha" => "2001"
                        "volumen" => "3"
                        "paginaInicial" => "CD001466"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11686992"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            18 => array:3 [
              "identificador" => "bib19"
              "etiqueta" => "19&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The prognosis of surgery for cervical compression myelopathy&#46; An analysis of the factors involved"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "K&#46; Fujiwara"
                            1 => "K&#46; Yonenobu"
                            2 => "S&#46; Ebara"
                            3 => "K&#46; Yamashita"
                            4 => "K&#46; Ono"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "J Bone Joint Surg Br"
                        "fecha" => "1989"
                        "volumen" => "71"
                        "paginaInicial" => "393"
                        "paginaFinal" => "398"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/2722928"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            19 => array:3 [
              "identificador" => "bib20"
              "etiqueta" => "20&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The effect of surgical immobilization after laminectomy in the treatment of advanced cases of cervical spondylotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "L&#46; Gonz&#225;lez-Feria"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Acta Neurochir &#40;Wien&#41;"
                        "fecha" => "1975"
                        "volumen" => "31"
                        "paginaInicial" => "185"
                        "paginaFinal" => "193"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            20 => array:3 [
              "identificador" => "bib21"
              "etiqueta" => "21&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Dorsal surgical approach for cervical spondylotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "J&#46;D&#46; Gross"
                            1 => "E&#46;C&#46; Benzel"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Tech Neurosurg"
                        "fecha" => "1999"
                        "volumen" => "5"
                        "paginaInicial" => "162"
                        "paginaFinal" => "176"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            21 => array:3 [
              "identificador" => "bib22"
              "etiqueta" => "22&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Long-term results of surgical treatment of myelopathy due to cervical spondylosis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "B&#46; Guidetti"
                            1 => "A&#46; Fortuna"
                          ]
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                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Surg Radiol Anat&#46;"
                        "fecha" => "1969"
                        "volumen" => "30"
                        "paginaInicial" => "714"
                        "paginaFinal" => "721"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            22 => array:3 [
              "identificador" => "bib23"
              "etiqueta" => "23&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Bilateral multilevel lami nectomy with or without posterolateral fusi&#243;n for cervical spondylotic myelopathy&#58; relationship to type of onset and time until operation"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "C&#46; Hamanishi"
                            1 => "S&#46; Tanaka"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Surg Radiol Anat&#46;"
                        "fecha" => "1996"
                        "volumen" => "85"
                        "paginaInicial" => "447"
                        "paginaFinal" => "451"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            23 => array:3 [
              "identificador" => "bib24"
              "etiqueta" => "24&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Postoperative changes in the spinal cord in cervical myelopathy demonstrated by magnetic resonance imaging"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "A&#46; Harada"
                            1 => "K&#46; Mimatsu"
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                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1992"
                        "volumen" => "17"
                        "paginaInicial" => "1275"
                        "paginaFinal" => "1280"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/1462200"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            24 => array:3 [
              "identificador" => "bib25"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Estimation of cervical cord dysfunction by somatosensory evoked potentials"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "T&#46; Hayashida"
                            1 => "T&#46; Ogura"
                            2 => "H&#46; Hase"
                            3 => "T&#46; Osawa"
                            4 => "Y&#46; Hirasawa"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Muscle Nerve"
                        "fecha" => "2000"
                        "volumen" => "23"
                        "paginaInicial" => "1589"
                        "paginaFinal" => "1593"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11003797"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            25 => array:3 [
              "identificador" => "bib26"
              "etiqueta" => "26&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Outcome in Cloward anterior fusi&#243;n for degenerative cervical spine disease"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "V&#46; Heidecke"
                            1 => "N&#46;G&#46; Rainov"
                            2 => "T&#46; Marx"
                            3 => "W&#46; Burket"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Acta Neurochir &#40;Wien&#41;"
                        "fecha" => "2000"
                        "volumen" => "142"
                        "paginaInicial" => "283"
                        "paginaFinal" => "291"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            26 => array:3 [
              "identificador" => "bib27"
              "etiqueta" => "27&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Laminoplasty versus laminectomy and fusi&#243;n for mul tilevel cervical myelopathy&#58; an independent matched cohort analysis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "J&#46;G&#46; Heller"
                            1 => "C&#46;C&#46; Edwards"
                            2 => "H&#46; Murakami"
                            3 => "G&#46;E&#46; Rodts"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "2001"
                        "volumen" => "26"
                        "paginaInicial" => "1330"
                        "paginaFinal" => "1336"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11426147"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            27 => array:3 [
              "identificador" => "bib28"
              "etiqueta" => "28&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Multilevel cervical spondylosis&#46; Laminoplasty versus anterior decompression"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "K&#46; Hirabayashi"
                            1 => "H&#46;H&#46; Bohlman"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1995"
                        "volumen" => "20"
                        "paginaInicial" => "1732"
                        "paginaFinal" => "1734"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/7482026"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            28 => array:3 [
              "identificador" => "bib29"
              "etiqueta" => "29&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Operative results and postoperative progression of ossification among patients with ossification of cervical posterior longitudinal ligament"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "K&#46; Hirabayashi"
                            1 => "J&#46; Miyakawa"
                            2 => "K&#46; Satomi"
                            3 => "T&#46; Maruyama"
                            4 => "K&#46; Wakano"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.3171/spi.2007.6.4.12"
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1981"
                        "volumen" => "6"
                        "paginaInicial" => "354"
                        "paginaFinal" => "364"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/17436926"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            29 => array:3 [
              "identificador" => "bib30"
              "etiqueta" => "30&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The role of ischemia in the pathogenesis of cervical spondylotic myelopathy&#58; A review and new microangiographic evidence"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "J&#46;T&#46; Hoff"
                            1 => "M&#46; Nishimura"
                            2 => "L&#46; Pitts"
                            3 => "V&#46; Vilnis"
                            4 => "K&#46; Tuerk"
                            5 => "R&#46; Lagger"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1977"
                        "volumen" => "2"
                        "paginaInicial" => "100"
                        "paginaFinal" => "108"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            30 => array:3 [
              "identificador" => "bib31"
              "etiqueta" => "31&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Serial changes in signal intensities of the adjacent discs on T2-weighted sagittal images after surgical treatment of cervical spondylosis&#58; anterior interbody fusi&#243;n versus expansive laminoplasty"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "T&#46; Iseda"
                            1 => "T&#46; Goya"
                            2 => "S&#46; Nakano"
                            3 => "T&#46; Kodama"
                            4 => "T&#46; Moriyama"
                            5 => "S&#46; Wakisaka"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Acta Neurochir &#40;Wien&#46;&#41;"
                        "fecha" => "2001"
                        "volumen" => "143"
                        "paginaInicial" => "707"
                        "paginaFinal" => "710"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            31 => array:3 [
              "identificador" => "bib32"
              "etiqueta" => "32&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The surgical treatment of cervical myelopathy due to spondylosis and disc degeneration"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "R&#46;V&#46; Jeffreys"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "J Neurol Neurosurg Psychiatry"
                        "fecha" => "1986"
                        "volumen" => "49"
                        "paginaInicial" => "353"
                        "paginaFinal" => "361"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/3701345"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            32 => array:3 [
              "identificador" => "bib33"
              "etiqueta" => "33&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Conservative treatment versus surgery in spondylotic cervical myelopathy&#58; a prospective randomised study"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "Z&#46; Kadanka"
                            1 => "J&#46; Bednarik"
                            2 => "S&#46; Vohanka"
                            3 => "O&#46; Vlach"
                            4 => "L&#46; Stejskal"
                            5 => "R&#46; Chaloupka"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Eur&#46; Spine J"
                        "fecha" => "2000"
                        "volumen" => "9"
                        "paginaInicial" => "538"
                        "paginaFinal" => "544"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11189924"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            33 => array:3 [
              "identificador" => "bib34"
              "etiqueta" => "34&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Surgical outcome of cervical expansive lamino plasty in patients with diabetes mellitus"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "Y&#46; Kawaguchi"
                            1 => "H&#46; Matsui"
                            2 => "H&#46; Ishihara"
                            3 => "R&#46; Gejo"
                            4 => "T&#46; Yasuda"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "2000"
                        "volumen" => "25"
                        "paginaInicial" => "551"
                        "paginaFinal" => "555"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10749630"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            34 => array:3 [
              "identificador" => "bib35"
              "etiqueta" => "35&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Evaluation of prognostic factors following expan sive laminoplasty for cervical spinal stenotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "K&#46; Kohno"
                            1 => "Y&#46; Kumon"
                            2 => "Y&#46; Oka"
                            3 => "S&#46; Matsui"
                            4 => "S&#46; Ohue"
                            5 => "S&#46; Sakaki"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Surg Neurol"
                        "fecha" => "1997"
                        "volumen" => "48"
                        "paginaInicial" => "237"
                        "paginaFinal" => "245"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9290710"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            35 => array:3 [
              "identificador" => "bib36"
              "etiqueta" => "36&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Postoperative prognosis of Brown-Sequard-type myelopathy in patients with cervical lesions"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "M&#46; Kohno"
                            1 => "H&#46; Takahashi"
                            2 => "K&#46; Yamakawa"
                            3 => "K&#46; Ide"
                            4 => "H&#46; Segawa"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Surg Neurol"
                        "fecha" => "1999"
                        "volumen" => "51"
                        "paginaInicial" => "241"
                        "paginaFinal" => "246"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10086485"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            36 => array:3 [
              "identificador" => "bib37"
              "etiqueta" => "37&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Predictability of operative results of cervical compression myelopathy based on preoperative computed tomographic myelography"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "T&#46; Koyanagi"
                            1 => "K&#46; Hirabayashi"
                            2 => "K&#46; Satomi"
                            3 => "Y&#46; Toyama"
                            4 => "Y&#46; Fujimura"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1993"
                        "volumen" => "18"
                        "paginaInicial" => "1958"
                        "paginaFinal" => "1963"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8272943"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            37 => array:3 [
              "identificador" => "bib38"
              "etiqueta" => "38&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical spondylotic myelopathy&#58; functional and radiographic long-term outcome after laminectomy and posterior fusi&#243;n"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "V&#46;G&#46;R&#46; Kumar"
                            1 => "G&#46;L&#46; Rea"
                            2 => "L&#46;J&#46; Mervis"
                            3 => "J&#46;M&#46; McGregor"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurosurgery"
                        "fecha" => "1999"
                        "volumen" => "44"
                        "paginaInicial" => "771"
                        "paginaFinal" => "778"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10201302"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            38 => array:3 [
              "identificador" => "bib39"
              "etiqueta" => "39&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Evaluation and management of cervical spondylotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "M&#46;D&#46; Law"
                            1 => "M&#46; Bernhardt"
                            2 => "A&#46;A&#46; White"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Instr Course Lect"
                        "fecha" => "1995"
                        "volumen" => "44"
                        "paginaInicial" => "99"
                        "paginaFinal" => "110"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/7797896"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            39 => array:3 [
              "identificador" => "bib40"
              "etiqueta" => "40&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Results of surgical treatment of radiculomyelopathy caused by cervical arthrosis based on 1000 operations"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "F&#46; Lesoin"
                            1 => "N&#46; Bouasakao"
                            2 => "J&#46; Clarisse"
                            3 => "M&#46; Rousseaux"
                            4 => "M&#46; Jomin"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Surg Neurol"
                        "fecha" => "1985"
                        "volumen" => "23"
                        "paginaInicial" => "350"
                        "paginaFinal" => "355"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/2983449"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            40 => array:3 [
              "identificador" => "bib41"
              "etiqueta" => "41&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Discectom&#237;a cervical y artrodesis intersom&#225;tica por v&#237;a anterior mediante t&#233;cnica de Cloward&#58; an&#225;lisis retrospectivo de las complicaciones y los resultados radiol&#243;gicos en 167 casos"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "R&#46; Mart&#237;n"
                            1 => "J&#46;R&#46; Carda"
                            2 => "J&#46;I&#46; Pinto"
                            3 => "F&#46; Sanz"
                            4 => "F&#46; Montiaga"
                            5 => "B&#46; Paternina"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurocirugia"
                        "fecha" => "2002"
                        "volumen" => "13"
                        "paginaInicial" => "265"
                        "paginaFinal" => "284"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/12355650"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            41 => array:3 [
              "identificador" => "bib42"
              "etiqueta" => "42&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical myelopathy caused by median disc herniation&#58; analysis of the complications following anterior discectomy with and without Fusi&#243;n Report of 90 cases"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "V&#46; Martino"
                            1 => "P&#46; Nina"
                            2 => "A&#46; Franco"
                            3 => "A&#46; Di Benedetto"
                            4 => "F&#46; Chiappetta"
                            5 => "G&#46; Schisano"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "J Neurosurg Sci"
                        "fecha" => "1997"
                        "volumen" => "41"
                        "paginaInicial" => "153"
                        "paginaFinal" => "158"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9385565"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            42 => array:3 [
              "identificador" => "bib43"
              "etiqueta" => "43&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Increased MR signal intensity due to cervical myelopathy&#46; Analysis of 29 surgical cases"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "Y&#46; Matsuda"
                            1 => "K&#46; Miyazaki"
                            2 => "K&#46; Tada"
                            3 => "A&#46; Yasuda"
                            4 => "T&#46; Nakayama"
                            5 => "H&#46; Murakami"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Surg Radiol Anat"
                        "fecha" => "1991"
                        "volumen" => "74"
                        "paginaInicial" => "887"
                        "paginaFinal" => "892"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            43 => array:3 [
              "identificador" => "bib44"
              "etiqueta" => "44&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Classification of cervical spondylosis or disc protrusion by preoperative evoked spinal electrogram&#46; Follow-up study"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "Y&#46; Matsukado"
                            1 => "M&#46; Yoshida"
                            2 => "T&#46; Goya"
                            3 => "K&#46; Shimoji"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Surg Radiol Anat"
                        "fecha" => "1976"
                        "volumen" => "44"
                        "paginaInicial" => "435"
                        "paginaFinal" => "441"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            44 => array:3 [
              "identificador" => "bib45"
              "etiqueta" => "45&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Spinal cord expansi&#243;n after decompression in cervical myelopathy&#46; Investigation by computed tomography myelography and ultrasonography"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "Y&#46; Matsuyama"
                            1 => "N&#46; Kawakami"
                            2 => "K&#46; Mimatsu"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1995"
                        "volumen" => "20"
                        "paginaInicial" => "1657"
                        "paginaFinal" => "1663"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/7482013"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            45 => array:3 [
              "identificador" => "bib46"
              "etiqueta" => "46&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Magnetic resonance imaging and cervical spondylotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "T&#46;F&#46; Mehalic"
                            1 => "R&#46;T&#46; Pezzuti"
                            2 => "B&#46;I&#46; Applebaum"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurosurgery"
                        "fecha" => "1990"
                        "volumen" => "26"
                        "paginaInicial" => "217"
                        "paginaFinal" => "227"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/2308669"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            46 => array:3 [
              "identificador" => "bib47"
              "etiqueta" => "47&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "A prospective survey of the causes of non-traumatic spastic paraparesis and tetraparesis in 585 patients"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "A&#46;P&#46; Moore"
                            1 => "L&#46;D&#46; Blumhardt"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spinal Cord"
                        "fecha" => "1997"
                        "volumen" => "35"
                        "paginaInicial" => "361"
                        "paginaFinal" => "367"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9194258"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            47 => array:3 [
              "identificador" => "bib48"
              "etiqueta" => "48&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Correlation between operative outcomes of cervical compression myelopathy and mri of the spinal cord"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "Y&#46; Morio"
                            1 => "R&#46; Teshima"
                            2 => "H&#46; Nagashima"
                            3 => "K&#46; Nawata"
                            4 => "D&#46; Yamasaki"
                            5 => "Y&#46; Nanjo"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "2001"
                        "volumen" => "26"
                        "paginaInicial" => "1238"
                        "paginaFinal" => "1245"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11389390"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            48 => array:3 [
              "identificador" => "bib49"
              "etiqueta" => "49&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Does increased signal intensity of the spinal cord on MR images due to cervical myelopathy predict prognosis&#63;"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "Y&#46; Morio"
                            1 => "K&#46; Yamamoto"
                            2 => "K&#46; Kuranobu"
                            3 => "M&#46; Murata"
                            4 => "K&#46; Tuda"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Arch Orthop Trauma Surg"
                        "fecha" => "1994"
                        "volumen" => "113"
                        "paginaInicial" => "254"
                        "paginaFinal" => "259"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/7946816"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            49 => array:3 [
              "identificador" => "bib50"
              "etiqueta" => "50&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical spondylotic myelopathy&#58; surgical results and factors affecting prognosis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "S&#46; Naderi"
                            1 => "S&#46; Ozgen"
                            2 => "M&#46;N&#46; Pamir"
                            3 => "M&#46;M&#46; Ozek"
                            4 => "C&#46; Erzen"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurosurgery"
                        "fecha" => "1998"
                        "volumen" => "43"
                        "paginaInicial" => "43"
                        "paginaFinal" => "50"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9657187"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            50 => array:3 [
              "identificador" => "bib51"
              "etiqueta" => "51&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical myelopathy in eiderly patients&#58; clinical results and MRI fmdings before and after decompression surgery"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "K&#46; Nagata"
                            1 => "T&#46; Ohashi"
                            2 => "J&#46; Abe"
                            3 => "M&#46; Morita"
                            4 => "A&#46; Inoue"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spinal Cord"
                        "fecha" => "1996"
                        "volumen" => "34"
                        "paginaInicial" => "220"
                        "paginaFinal" => "226"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8963966"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            51 => array:3 [
              "identificador" => "bib52"
              "etiqueta" => "52&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Magnetic resonance ima ging of the spinal cord in cervical ossification of the posterior longitudinal ligament&#46; Can it predict surgical outcome&#63;"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "M&#46; Nakamura"
                            1 => "Y&#46; Fujimura"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1998"
                        "volumen" => "23"
                        "paginaInicial" => "38"
                        "paginaFinal" => "40"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9460150"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            52 => array:3 [
              "identificador" => "bib53"
              "etiqueta" => "53&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The natural history and the results of sur gical treatment of the spinal cord disorder associated with cervical spondylosis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "S&#46; Nurick"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Brain"
                        "fecha" => "1972"
                        "volumen" => "95"
                        "paginaInicial" => "101"
                        "paginaFinal" => "108"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/5023079"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            53 => array:3 [
              "identificador" => "bib54"
              "etiqueta" => "54&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Eficacia de la artrodesis en el abordaje posterior de la mielopat&#237;a cervical&#58; estudio comparativo de una serie de 36 casos"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "C&#46; P&#233;rez-L&#243;pez"
                            1 => "A&#46; Isla"
                            2 => "F&#46; &#193;lvarez"
                            3 => "M&#46;A&#46; Sarmiento"
                            4 => "P&#46; Garc&#237;a-Raya"
                            5 => "M&#46; P&#233;rez-&#193;lvarez"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurocirugia"
                        "fecha" => "2001"
                        "volumen" => "12"
                        "paginaInicial" => "316"
                        "paginaFinal" => "324"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11706676"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            54 => array:3 [
              "identificador" => "bib55"
              "etiqueta" => "55&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Surgical treatment of myelopathy with cervical spondylosis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "D&#46;G&#46; Phillips"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "J Neurol Neurosurg Psychiatry"
                        "fecha" => "1973"
                        "volumen" => "36"
                        "paginaInicial" => "879"
                        "paginaFinal" => "884"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/4753885"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            55 => array:3 [
              "identificador" => "bib56"
              "etiqueta" => "56&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Segmental dysfunction of the cervical cord revealed by abnonnalities of the spinal NI3 potential in cervical spondylotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "D&#46; Restuccia"
                            1 => "L&#46;V&#46; Di"
                            2 => "M&#46; Valeriani"
                            3 => "P&#46; Tonali"
                            4 => "F&#46; Mauguiere"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurology"
                        "fecha" => "1992"
                        "volumen" => "42"
                        "paginaInicial" => "1054"
                        "paginaFinal" => "1063"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/1579229"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            56 => array:3 [
              "identificador" => "bib57"
              "etiqueta" => "57&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Surgical treatment of cervical spondylotic myelopathy&#58; time for a controlled trial"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "L&#46;P&#46; Rowland"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurology"
                        "fecha" => "1992"
                        "volumen" => "42"
                        "paginaInicial" => "5"
                        "paginaFinal" => "13"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/1584431"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            57 => array:3 [
              "identificador" => "bib58"
              "etiqueta" => "58&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Outcome of patients treated for cervical myelopathy&#46; A prospective&#44; multicenter study with independent clinical review"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "R&#46; Sampath"
                            1 => "M&#46; Bendebba"
                            2 => "J&#46;D&#46; Davis"
                            3 => "T&#46;B&#46; Ducker"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "2000"
                        "volumen" => "25"
                        "paginaInicial" => "670"
                        "paginaFinal" => "676"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10752097"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            58 => array:3 [
              "identificador" => "bib59"
              "etiqueta" => "59&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Anterior reconstructive procedures in cervical spondylotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "R&#46;L&#46; Saunders"
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                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Clin Neurosurg"
                        "fecha" => "1991"
                        "volumen" => "37"
                        "paginaInicial" => "682"
                        "paginaFinal" => "6721"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/2009714"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            59 => array:3 [
              "identificador" => "bib60"
              "etiqueta" => "60&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Central corpectomy for cervical spondylotic myelopathy&#58; a consecutive series with long-term follow-up evaluation"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "R&#46;L&#46; Saunders"
                            1 => "P&#46;M&#46; Bernini"
                            2 => "T&#46;G&#46;J&#46; Shirreffs"
                            3 => "A&#46;G&#46; Reeves"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Surg Radiol Anat"
                        "fecha" => "1991"
                        "volumen" => "74"
                        "paginaInicial" => "163"
                        "paginaFinal" => "170"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            60 => array:3 [
              "identificador" => "bib61"
              "etiqueta" => "61&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cervical myelopathy due to nuclear herniations in young adults&#58; clinical and radiological profile&#44; results of microdiscectomy without interbody fusi&#243;n"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "B&#46;M&#46; Selladurai"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "J Neurol Neurosurg Psychiatry"
                        "fecha" => "1992"
                        "volumen" => "55"
                        "paginaInicial" => "604"
                        "paginaFinal" => "608"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/1640239"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            61 => array:3 [
              "identificador" => "bib62"
              "etiqueta" => "62&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Prognosticating study for cer vical myelopathy using evoked spinal cord potentials"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "K&#46; Shinomiya"
                            1 => "A&#46; Okamoto"
                            2 => "H&#46; Komori"
                            3 => "T&#46; Matsuoka"
                            4 => "H&#46; Yoshida"
                            5 => "N&#46; Muto"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1990"
                        "volumen" => "15"
                        "paginaInicial" => "1053"
                        "paginaFinal" => "1057"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/2263971"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            62 => array:3 [
              "identificador" => "bib63"
              "etiqueta" => "63&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Developmental and dynamic canal stenosis as radio logical factors affecting surgical results of anterior cervical fusi&#243;n for myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "E&#46; Shoda"
                            1 => "M&#46; Sumi"
                            2 => "O&#46; Kataoka"
                            3 => "H&#46; Mukai"
                            4 => "M&#46; Hurosaka"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1999"
                        "volumen" => "24"
                        "paginaInicial" => "1421"
                        "paginaFinal" => "1424"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10423786"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            63 => array:3 [
              "identificador" => "bib64"
              "etiqueta" => "64&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Clini cal and radiological correlates of severity and surgery-related outcome in cervical spondylosis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "A&#46; Singh"
                            1 => "H&#46;A&#46; Crockard"
                            2 => "A&#46; Platts"
                            3 => "J&#46; Stevens"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Surg Radiol Anat&#46;"
                        "fecha" => "2001"
                        "volumen" => "94"
                        "paginaInicial" => "189"
                        "paginaFinal" => "198"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            64 => array:3 [
              "identificador" => "bib65"
              "etiqueta" => "65&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Increased MR signal intensity secondary to chronic cervical cord compression"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "M&#46; Takahashi"
                            1 => "Y&#46; Sakamoto"
                            2 => "M&#46; Miyawaki"
                            3 => "H&#46; Bussaka"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neuroradiology"
                        "fecha" => "1987"
                        "volumen" => "29"
                        "paginaInicial" => "550"
                        "paginaFinal" => "556"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/3124018"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            65 => array:3 [
              "identificador" => "bib66"
              "etiqueta" => "66&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Operative results of canal-expansive laminoplasty for cervical spondylotic myelopathy in elderly patients"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "J&#46; Tanaka"
                            1 => "N&#46; Seki"
                            2 => "F&#46; Tokimura"
                            3 => "K&#46; Doi"
                            4 => "S&#46; Inoue"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1999"
                        "volumen" => "24"
                        "paginaInicial" => "2308"
                        "paginaFinal" => "2312"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10586453"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            66 => array:3 [
              "identificador" => "bib67"
              "etiqueta" => "67&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Surgical treatment guided by spinal cord evoked potentials for tetraparesis due to cervical spondylosis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "T&#46; Tani"
                            1 => "T&#46; Ushida"
                            2 => "H&#46; Yamamoto"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1038/sc.1995.79"
                      "Revista" => array:6 [
                        "tituloSerie" => "Paraplegia"
                        "fecha" => "1995"
                        "volumen" => "33"
                        "paginaInicial" => "354"
                        "paginaFinal" => "358"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/7644264"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            67 => array:3 [
              "identificador" => "bib68"
              "etiqueta" => "68&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Vascular factors in the myelopathy associated with cervical spondylosis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "A&#46;R&#46; Taylor"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Neurology"
                        "fecha" => "1964"
                        "volumen" => "14"
                        "paginaInicial" => "62"
                        "paginaFinal" => "68"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/14112448"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            68 => array:3 [
              "identificador" => "bib69"
              "etiqueta" => "69&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Neurophysiological investigation of cervical spondylosis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "I&#46; Tsiptsios"
                            1 => "F&#46; Fotiou"
                            2 => "K&#46; Sitzoglou"
                            3 => "K&#46;N&#46; Fountoulakis"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Electromyogr Clin Neurophysiol"
                        "fecha" => "2001"
                        "volumen" => "41"
                        "paginaInicial" => "305"
                        "paginaFinal" => "313"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11572192"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            69 => array:3 [
              "identificador" => "bib70"
              "etiqueta" => "70&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Intramedullary changes of the spinal cord in cervical spondylotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "E&#46; Wada"
                            1 => "M&#46; Ohmura"
                            2 => "K&#46; Yonenobu"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:4 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1995"
                        "volumen" => "20"
                        "paginaInicial" => "2232"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            70 => array:3 [
              "identificador" => "bib71"
              "etiqueta" => "71&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Subtotal corpectomy versus laminoplasty for multilevel cervical spondylotic myelopathy&#46; A long-term follow-up study over 10 years"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "E&#46; Wada"
                            1 => "S&#46; Suzuki"
                            2 => "A&#46; Kanazawa"
                            3 => "T&#46; Mastsuoka"
                            4 => "S&#46; Miyamoto"
                            5 => "K&#46; Yonenobu"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "2001"
                        "volumen" => "26"
                        "paginaInicial" => "1443"
                        "paginaFinal" => "1448"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11458148"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            71 => array:3 [
              "identificador" => "bib72"
              "etiqueta" => "72&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Can intramedullary signal change on magnetic resonance imaging predict surgical outcome in cervical spondylo tic myelopathy&#63;"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "E&#46; Wada"
                            1 => "K&#46; Yonenobu"
                            2 => "S&#46; Suzuki"
                            3 => "A&#46; Kanazawa"
                            4 => "T&#46; Ochi"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1999"
                        "volumen" => "24"
                        "paginaInicial" => "455"
                        "paginaFinal" => "461"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10084183"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            72 => array:3 [
              "identificador" => "bib73"
              "etiqueta" => "73&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Treatment of cervical disc disease using Cloward&#39;s technique&#46; III&#46; Evaluation of cervical spondylotic myelopathy in 138 cases"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "L&#46; Wohlert"
                            1 => "M&#46; Buhl"
                            2 => "E&#46;F&#46; Eriksen"
                            3 => "K&#46; Fode"
                            4 => "A&#46; Klaerke"
                            5 => "L&#46; Kroyer"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Acta Neurochir &#40;Wien&#46;&#41;"
                        "fecha" => "1984"
                        "volumen" => "71"
                        "paginaInicial" => "121"
                        "paginaFinal" => "131"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            73 => array:3 [
              "identificador" => "bib74"
              "etiqueta" => "74&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Interobserver and intraobserver reliability of the japanese orthopaedic association scoring system for eva luation of cervical compression myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "K&#46; Yonenobu"
                            1 => "K&#46; Abumi"
                            2 => "K&#46; Nagata"
                            3 => "E&#46; Taketomi"
                            4 => "K&#46; Ueyama"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "2001"
                        "volumen" => "26"
                        "paginaInicial" => "1890"
                        "paginaFinal" => "1894"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11568701"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            74 => array:3 [
              "identificador" => "bib75"
              "etiqueta" => "75&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Laminoplasty versus subtotal corpectomy&#46; A comparative study of results in multisegmental cervical spondylotic myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "K&#46; Yonenobu"
                            1 => "N&#46; Hosono"
                            2 => "M&#46; Iwasaki"
                            3 => "M&#46; Asano"
                            4 => "K&#46; Ono"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1992"
                        "volumen" => "17"
                        "paginaInicial" => "1281"
                        "paginaFinal" => "1284"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/1462201"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            75 => array:3 [
              "identificador" => "bib76"
              "etiqueta" => "76&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Causes of neurologic deterioration following surgical treatment of cervical myelopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "K&#46; Yonenobu"
                            1 => "K&#46; Okada"
                            2 => "T&#46; Fuji"
                            3 => "K&#46; Fujiwara"
                            4 => "K&#46; Yamashita"
                            5 => "K&#46; Ono"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Spine"
                        "fecha" => "1986"
                        "volumen" => "11"
                        "paginaInicial" => "818"
                        "paginaFinal" => "823"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/3810299"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
          ]
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Vol. 16. Núm. 3.
Páginas 235-255 (enero 2004)
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Vol. 16. Núm. 3.
Páginas 235-255 (enero 2004)
Mielopatía cervical: análisis retrospectivo de los resultados quirúrgicos de 54 pacientes tratados mediante discectomía y fusión intersomática por vía anterior
Cervical myelopathy: Retrospective analysis of surgical results in 53 cases treated by anterior cervical discectomy and interbody fusión
Visitas
2477
R. Martín
, J.R. Carda, F. Montiaga, J.I. Pinto, F. Sanz, B. Paternina, F. Trigueros, J.M. Izquierdo, A. Vázquez-Barquero
Servicio de Neurocirugía. Hospital Universitario Marqués de Valdecilla. Santander
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Información del artículo
Resumen
Pacientes y métodos

Se analiza de forma retrospectiva el resultado clínico de una serie consecutiva de 53 pacientes afectos de mielopatía o mielorradiculopatía cervical que fueron intervenidos mediante discectomía cervical y artrodesis por vía anterior utilizando la técnica de Cloward, con un seguimiento medio de 3 años.

Resultados

El 64.2% de los pacientes se benefició del tratamiento quirúrgico, mejorando en uno o más grados en la escala de Nurick. No se produjo mortalidad, aunque apareció deterioro neurológico en el 9.4% de los casos. Se objetivó una correcta fusión de los segmentos intervenidos en el 92.5% de las cirugías, desarrollando un 9.4% de los enfermos cifosis postquirúrgica. En el análisis multivariante se identificaron como factores relacionados con el resultado clínico: edad (p=0.008), presencia de factores de riesgo vascular (p=0.031), duración de la clínica (p=0.002), estado neurológico prequirúrgico (p<0.001), diagnóstico neurorradiológico (p=0.014), presencia de hiperseñal intramedular en las secuencias de resonancia magnética potenciadas en T2 (p=0.008), alteración de la conducción medular en el estudio neurofisiológico (p=0.004) y desarrollo de complicaciones quirúrgicas (p=0.012).

Conclusiones

Dadas las discrepancias existentes en la actualidad, la optimización del tratamiento de estos pacientes pasa por una valoración individualizada, y por la realización de estudios prospectivos y randomizados que respondan a las preguntas cuándo y cómo operar.

Palabras clave:
Artrodesis intersomática
Discectomía cervical
Hernia discal cervical
Mielopatía cervical
Radiculopatía cervical
Abstract
Patients and methods

We perform a retrospective analysis of clinical results in 53 consecutive patients surgically treated for cervical myelopathy or myelo-radiculopathy with anterior cervical discectomy and interbody fusión by means of the Cloward procedure.

Results

64.2% of the patients had good outcome as measured by the improvement in one or more grades in the Nurick's scale. No mortality related to the surgical procedure was noted, although 9.4% of the cases suffered neurological deterioration. Correct fusión was achieved in 92.5% of the patients, with a rate of post-surgical kyphosis of 9.4%. Multivariate analysis identified as factors related to the clinical outcome: age (p=0.008), vascular risk factors (p=0.031), duration of symptoms (p=0.002), pre-surgical neurological status (p<0.001), neuroradiological diagnosis (p=0.014), intramedullary high signal intensity changes in T2-weighted images (p=0.008), prolongation of the central somatosensory or motor conduction times (p=0.004) and neurologic complications (p=0.012)

Conclusions

Treatment optimisation of the patient suffering cervical spondylotic myelopathy requires individualised evaluation. Prospective randomised studies are needed to answer the questions when and how to opérate.

Key words:
Cervical discectomy
Cervical disc herniation
Cervical myelopathy
Interbody fusión

Artículo

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