title: Reoperation and patient satisfaction after the Mobility total ankle arthroplasty.
abstract: BACKGROUND
  The purpose of the present study was to report on the frequency of reoperation, failure and patient satisfaction after the Mobility total ankle arthroplasty.
  
  
  METHODS
  Sixty-two consecutive primary total ankle arthroplasties in 60 patients were performed with the use of the DePuy Mobility total ankle system between February 2006 and January 2009. Fifty-eight ankles in 56 patients were followed up between 14 and 49 months (mean: 32 months).
  
  
  RESULTS
  Eighteen ankles (31%) underwent an initial reoperation at a mean time of 14 months after primary total ankle arthroplasty. Only three ankles (17%) had improved symptoms after initial reoperation. Eight of these 18 ankles (44%) underwent a second reoperation. A total of seven ankles (12%) had been revised. Overall, 67% were satisfied, and 79% stated that they would undergo the same operation again.
  
  
  CONCLUSIONS
  This study on a third-generation total ankle arthroplasty reported a relatively high rate of reoperation. There was a significant increase in the reported failure when using re-operation rather than component revision as the end point. This may be one of the inherent limitations in Joint Registry data that only include component revision.
authors.affiliation: Alfred Hospital, Melbourne, Victoria, Australia. johannesummers@gmail.com
authors.forename: Johanne Carly
authors.initials: JC
authors.lastname: Summers
authors.forename: Harvinder S
authors.initials: HS
authors.lastname: Bedi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001168:Arthritis / Q000000981:diagnostic imaging / Q000601:surgery*; D058737:Arthroplasty, Replacement, Ankle / Q000295:instrumentation* / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007595:Joint Prosthesis; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D011859:Radiography; D012086:Reoperation / Q000706:statistics & numerical data; D016896:Treatment Outcome