title: [Results to 4-year follow-up of the treatment of the cervical stenosis by corpectomy, titanium mesh cage and anterior plate fixation].
abstract: BACKGROUND
  Cervical spondylotic myelopathy is caused by cervical stenosis. Several techniques have been described for the treatment of multilevel disease, such as the anterior corpectomy with titanium mesh cage and anterior cervical plate placement, which has the advantage of performing a wider decompression and using the same bone as graft. However, it has caused controversy since the collapse of the mesh cage continues being a major limitation of this procedure.
  
  
  METHODS
  A prospective 4-year follow-up study was conducted in 7 patients diagnosed with cervical stenosis, who were treated surgically by one level corpectomy with titanium mesh cage and anterior cervical plate placement, evaluating them by radiographs and clinical scales.
  
  
  RESULTS
  7 patients, 5 women and 2 males were studied. The most common level was C5 corpectomy (n=4). The Neck Disability Index (NDI) preoperative average was 30.01±24.32 and 4-year postoperative 16.90±32.05, with p=0.801. The preoperative and 4-year postoperative Nürick was 3.28± 48 and 3.14±1.21 respectively, with p=0.766. Preoperative lordosis was 14.42±8.03 and 4-year postoperative 17±11.67 degrees, with p=0.660. The immediate postoperative and 4-year postoperative subsidence was 2.69±2.8 and 6.11±1.61 millimeters respectively, with p=0.0001.
  
  
  CONCLUSIONS
  Despite the small sample, the subsidence of the mesh cage is common in this procedure. No statistically significant changes were observed in the lordosis or Nürick scale and NDI.
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, Secretaria de Salud, Ciudad de México, México. Electronic address: alereyes@inr.gob.mx.
authors.forename: Alejandro Antonio
authors.initials: AA
authors.lastname: Reyes Sánchez
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, Secretaria de Salud, Ciudad de México, México.
authors.forename: Luis Alberto
authors.initials: LA
authors.lastname: Gameros Castañeda
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, Secretaria de Salud, Ciudad de México, México.
authors.forename: Claudia
authors.initials: C
authors.lastname: Obil Chavarría
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, Secretaria de Salud, Ciudad de México, México.
authors.forename: Armando
authors.initials: A
authors.lastname: Alpizar Aguirre
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, Secretaria de Salud, Ciudad de México, México.
authors.forename: Barón
authors.initials: B
authors.lastname: Zárate Kalfópulos
authors.affiliation: División de Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación, Secretaria de Salud, Ciudad de México, México.
authors.forename: Luis Miguel
authors.initials: LM
authors.lastname: Rosales-Olivares
mesh_terms: D000328:Adult; D001860:Bone Plates; D002574:Cervical Vertebrae / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016268:Internal Fixators; D008141:Lordosis / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013117:Spinal Cord Compression / Q000209:etiology / Q000601:surgery; D013123:Spinal Fusion / Q000379:methods; D013130:Spinal Stenosis / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D014025:Titanium
chemical_list: D014025:Titanium
keywords: Cervical spine; Columna cervical; Corpectomy; Corpectomía; Hundimiento; Malla de titanio; Subsidence; Titanium mesh cage