title: [Use of the PEEK cage in cervical spondylosis treatment].
abstract: BACKGROUND
  Decompression and fusion with autograft is the gold standard technique in the treatment of cervical canal strait. Using PEEK cages or boxes of non-absorbable polymer with elasticity similar to bone, radiolucent, reduces morbidity and same degree of fusion.
  
  
  METHODS
  A case series, prospective, longitudinal, deliberate intervention, evaluation panel before and after 2 years follow-up. Discectomy and PEEK housing placement with autologous graft. Arthrodesis were evaluated, cervical lordosis, intervertebral space height, pain evaluated with Visual Analogue Scale, Neck Disability Index, operative time, intraoperative bleeding, hospital stay and complications. Statistical analysis with t Sudent, Wilcoxon and Fisher's exact text.
  
  
  RESULTS
  Of 17 patients studied, 9 (53%) were female. Average age 62 years. The most affected level was C5-6, C6-7 with 5 patients. Melting was found at 100%. There was no sag or migration of the box, space height was conserved, but segmental lordosis was not retained. Clinical improvement in all patients as well as disability index was seen. Bleeding was on average 187 mL.
  
  
  CONCLUSIONS
  With regard to symptom improvement, conservation of interspace height and back, no segmental lordosis conservation and fusion using PEEK box is consistent with the literature. We suggest using anterior plate to maintain cervical lordosis. We found a melt index of 100%. We found clinical improvement of symptoms, pain and disability, and a global loss of cervical lordosis.
authors: Ortopedia, Instituto Nacional de Rehabilitación. Secretaría de Salud, México, DF, Mexico.
authors: Pedro
authors: P
authors: Joachin-Hernández
authors: Servicio de Cirugía de Columna, Instituto Nacional de Rehabilitación. Secretaría de Salud, México, DF, Mexico.
authors: Armando
authors: A
authors: Alpízar-Aguirre
authors: Servicio de Cirugía de Columna, Instituto Nacional de Rehabilitación. Secretaría de Salud, México, DF, Mexico.
authors: Barón
authors: B
authors: Zárate-Kalfópulus
authors: Servicio de Cirugía de Columna, Instituto Nacional de Rehabilitación. Secretaría de Salud, México, DF, Mexico.
authors: Luis Miguel
authors: LM
authors: Rosales-Olivares
authors: Servicio de Cirugía de Columna, Instituto Nacional de Rehabilitación. Secretaría de Salud, México, DF, Mexico.
authors: Guadalupe
authors: G
authors: Sánchez-Bringas
authors: División de Cirugía Especial, Instituto Nacional de Rehabilitación. Secretaría de Salud, México, DF, Mexico. alereyes@inr.gob.mx.
authors: Alejandro Antonio
authors: AA
authors: Reyes-Sánchez
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001577:Benzophenones; D001672:Biocompatible Materials / Q000009:adverse effects; D001857:Bone Matrix / Q000637:transplantation; D017586:Diskectomy / Q000379:methods; D005260:Female; D006801:Humans; D007659:Ketones / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D018579:Patient Selection; D011092:Polyethylene Glycols / Q000009:adverse effects; D011108:Polymers; D011446:Prospective Studies; D011843:Radiculopathy / Q000209:etiology / Q000517:prevention & control; D013117:Spinal Cord Compression / Q000209:etiology / Q000517:prevention & control; D013123:Spinal Fusion / Q000295:instrumentation* / Q000379:methods; D055009:Spondylosis / Q000209:etiology / Q000628:therapy*; D014182:Transplantation, Autologous; D016896:Treatment Outcome
chemical_list: D001577:Benzophenones; D001672:Biocompatible Materials; D007659:Ketones; D011108:Polymers; C063834:polyetheretherketone; D011092:Polyethylene Glycols
keywords: anterior cervical spine surgery; cirugía cervical anterior; discectomy fusion; disectomía; fusión de la columna cervical; polyether-etherketone