title: [Comparative study between plate-graft, cage-plate and peek cage in cervical arthrodesis for cervical stenosis].
abstract: BACKGROUND
  A variety of systems have been developed to fix and perform arthrodesis of the cervical spine, with the advantages of reducing the risk of pseudoarthrosis, extrusion and graft collapse and achieving a more precise sagittal alignment. We therefore need to compare the results of the following approaches to patients with cervical stenosis: plate-graft, cage-plate and PEEK cage.
  
  
  METHODS
  Prospective, interventional, comparative trial involving three groups: group I, arthrodesis with plate-graft; group II, cage-plate, and group III, PEEK cage. The pre- and postoperative assessments included the cervical disability scale, the pain visual analog scale (VAS), and cervical spine X-rays. The results were analyzed with non-parametric tests such as the Wilcoxon sign test and the Kruskal-Wallis test for the comparison of more than two groups. Significance level was 0.05.
  
  
  RESULTS
  The sample included a total of 37 patients: n = 12 in group I, with 22 levels; n = 11 in group II, with 19 levels, and n = 14 in group III, with 25 levels. Patient age ranged between 60 and 80. One year after surgery there was an improvement in cervical disability and the pain VAS score, with a statistically significant difference among the three groups (p = 0.001). However, radiographic measurements at that time showed a significant improvement in segmental lordosis (p = 0.02) only in plate-graft patients.
  
  
  CONCLUSIONS
  The plate-graft approach provides better clinical and radiographic results compared to the cage-plate and PEEK cage techniques, at the one-year follow- up.
authors.forename: A
authors.initials: A
authors.lastname: Alpizar-Aguirre
authors.forename: J A
authors.initials: JA
authors.lastname: Estrada-Gómez
authors.forename: B
authors.initials: B
authors.lastname: Zárate-Kalfopulus
authors.forename: G
authors.initials: G
authors.lastname: Sánchez-Bringas
authors.forename: L M
authors.initials: LM
authors.lastname: Rosales-Olivares
authors.forename: A A
authors.initials: AA
authors.lastname: Reyes-Sánchez
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002574:Cervical Vertebrae / Q000473:pathology / Q000601:surgery*; D004185:Disability Evaluation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000453:epidemiology; D010147:Pain Measurement; D011446:Prospective Studies; D011542:Pseudarthrosis / Q000517:prevention & control*; D013123:Spinal Fusion / Q000379:methods*; D013130:Spinal Stenosis / Q000473:pathology / Q000601:surgery*