title: [Reconstruction acusticus back wall and tympanoplasty with homograft costal cartilage].
abstract: OBJECTIVE
  To eliminate the back wall defect of external canal and opened mastoid cavity which was remained from radical mastoidectomy.
  
  
  METHODS
  We performed the operation on 17 cases after radical mastoidectomy by using reconstruction of the canal wall and fill-in opened mastoid cavity and ossicular replacement prostheses made of homograft costal cartilage. The tympanoplasty had been made operated for all patients, 8 ears were PORP, the others were TORP.
  
  
  RESULTS
  All cases were followed-up for 6 months-2 years. The external canal of all patients are normal in appearance. The total effective rate of gain (> 15 dB) was 14 ears (82.4%). Only one patient whose tympanic membrane was perforated postoperation 3 months.
  
  
  CONCLUSIONS
  Reconstruction of acusticus back wall and hearing after radical mastoidectomy with homograft costal cartilage is effective to prevent mastoid cavity infection and improve hearing.
authors.affiliation: Department of Otolaryngology, Angang Tiexi Hospital, Anshan 114012.
authors.forename: W
authors.initials: W
authors.lastname: Liu
authors.forename: Y H
authors.initials: YH
authors.lastname: Dai
authors.forename: H G
authors.initials: HG
authors.lastname: Lü
mesh_terms: D000328:Adult; D002356:Cartilage / Q000637:transplantation; D004431:Ear, External / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery*; D008875:Middle Aged; D009998:Ossicular Prosthesis; D019933:Ossicular Replacement / Q000379:methods*; D014184:Transplantation, Homologous; D014433:Tympanoplasty / Q000379:methods*