Abstract
This study reports the results of total hip arthroplasty (THA) for osteonecrosis after failed free vascularized fibular grafting (FVFG) at a 5-year minimum follow-up. In this study, 73 patients (89 THA) were treated for failed FVFG, and survival of THA was discussed. Clinical outcome was measured using a pain and function survey (possible 91 points) in 84 hips and Harris Hip scores (HHS, 100 possible points) for 52 hips. Survival was 94.4% at 5 years, 85.4% at 10 years, and 82% overall. Average HHS at final follow-up improved to 77.5 ( P < .05). The average clinical result after THA was 68 of 91 points. In this study, 58% of patients had a good or excellent HHS. The overall revision rate for proximal ingrowth stems was 13% at an average follow-up of 9.1 years. Only 4 patients required stem revision for loosening (7.4%). THA after FVFG provides improved functional results comparable to the published results of primary THA in osteonecrosis in young patients.
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