title: [Failure rate and revision surgery in ossiculoplasty with Kurz titanium prosthesis].
abstract: Despite its excellent biocompatibility, failures and in particular extrusion of the prosthesis have been described in ossiculoplasty with titanium prosthesis.
  
  
  OBJECTIVE
  Report our experience with revision ossicular recontruction in ossiculoplasty with Kurz prosthesis. Identify causes of failure in ossiculoplasty using the titanium prosthesis.
  
  
  METHODS
  Retrospective chart reviews were performed for 110 patients who had undergone titanium ossicular implants between November 1998 and 2002. All patients had undergone ossiculoplasty using titanium middle ear implants. Patients were divided into 2 groups: in group 1 patients underwent revision ossiculoplasty; in group 2 patients had a successful surgery at first stage. Anatomic and functional results have been studied in these two groups. Causes of failures were analysed.
  
  
  RESULTS
  The overall failure rate was 20% (22/110). Twenty patients underwent revision ossiculoplasty. Nine primary failures were attributable to a short implant. Two extrusions were observed. At long term billow-up, the functional gain between the primary and revision ossiculoplasty was comparable.
  
  
  CONCLUSIONS
  Revision ossiculoplasty is worthwhile for those patients who have failure of the titanium prosthesis in ossiculoplasty. A large cartilage graft interposition is necessary to prevent extrusion. The overall luxation rate observed in our series was mainly due to a too short prosthesis and we recommend now a reconstruction with longer prosthesis.
authors.affiliation: CHU Grenoble, Service ORL, F-38043 Grenoble cedex 09, France. DQNGuyen@chu-grenoble.fr
authors.forename: D Q
authors.initials: DQ
authors.lastname: Nguyen
authors.forename: J P
authors.initials: JP
authors.lastname: Lavieille
authors.forename: S
authors.initials: S
authors.lastname: Schmerber
mesh_terms: D000328:Adult; D000368:Aged; D001672:Biocompatible Materials; D004429:Ear Ossicles / Q000503:physiopathology / Q000601:surgery*; D004868:Equipment Failure / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019933:Ossicular Replacement / Q000706:statistics & numerical data*; D013517:Otorhinolaryngologic Surgical Procedures / Q000295:instrumentation; D012086:Reoperation; D014025:Titanium
chemical_list: D001672:Biocompatible Materials; D014025:Titanium