Abstract
The 2- to 5-year results of the APR-II total hip arthroplasty system (APR-II, Zimmer, Warsaw, Ind) were previously reported for 107 consecutive total hip arthroplasties performed between January 1994 and January 1995. The purpose of this study was to report the 10-year survival data in this same cohort of patients. Seventy-two (73%) of the 99 hips originally studied met the inclusion criteria for this report. None of the femoral or acetabular components had radiographic or clinical loosening. Three hips had had revision surgery for the acetabulum with 2 for recurrent dislocation and 1 for liner disassociation. All femoral components were retained. The 10-year Kaplan-Meier survivorship analysis, with failure defined as mechanical loosening, was 100% for both the cup and stem. These hip replacements have not shown any postoperative deterioration of clinical result, fixation, or wear up to 10 years.
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