title: [A comparison study of interbody cage in lumbar degenerative disease].
abstract: OBJECTIVE
  To compare the advantages and disadvantages of TFC/BAK, Prospace and Brantigan I/F carbon cages and summarize their applications.
  
  
  METHODS
  One hundred and twelve cases of Brantigan I/F, 123 cases of TFC/BAK and 45 cases of Prospaces were used in the treatment of degenerated lumbar disorders. The clinical results and complications were observed and analyzed.
  
  
  RESULTS
  All devices restored the height of intervertebral space and achieved immediate stability after insertion. One hundred and twelve cases of Brantigan I/F cages were solid fused, the clinical results were satisfactory. Three cases of TFC/BAK cages subsided into the vertebra and 2 cages retropulsed slightly during follow-up. There was no serious complications of nervous system, but the operation time and amount of bleeding in Brantigan I/F group increased.
  
  
  CONCLUSIONS
  Carbon fiber intervertebral cages are an effective method in treating degenerated lumbar disorders. To avoid complications, the indications and techniques must be selected carefully.
authors.affiliation: Department of Spine Surgery, Peking University People's Hospital, Beijing 100044, China.
authors.forename: Hai-ying
authors.initials: HY
authors.lastname: Liu
authors.forename: Dian-ge
authors.initials: DG
authors.lastname: Zhou
authors.forename: Hui-min
authors.initials: HM
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009984:Orthopedic Fixation Devices; D012189:Retrospective Studies; D013122:Spinal Diseases / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation* / Q000379:methods; D016896:Treatment Outcome