Long-term results of a hydroxyapatite-coated femoral component in total hip replacement. A 15- to 21-year follow up study

Abstract

Between 1986 and 1991 we implanted 331 consecutive Furlong hydroxyapatite-coated femoral components of a total hip replacement in 291 patients. A cemented acetabular prosthesis was used in 217 hips and a hydroxyapatite-coated component in 114. We describe the long-term clinical and radiological survival of the femoral component at a mean follow-up of 17.5 years (15 to 21). Only two patients (0.68\%) were lost to follow-up. With revision of the femoral component for any reason as the endpoint, the survival at a mean of 17 years was 97.4\% (95\% confidence interval 94.1 to 99.5), and with revision for aseptic loosening as the endpoint it was 100\%. The survival at a maximum of 21 years with revision of the femoral component for any reason as the endpoint was 97.4\% (95\% confidence interval 81.0 or 99.5). These results compare favourably with the best long-term results of cemented or uncemented femoral components used in total hip replacement.

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