Femoral component revision using an uncemented, proximally coated, long-stem prosthesis

Sixty-nine femoral component revisions with uncemented, metaphyseal-filling, proximally coated, chrome-cobalt, long-stem, curved prostheses were retrospectively reviewed 2 to 5 years after operation. The mean age of the patients was 62 years. The mean clinical follow-up period was 3 years, and the mean radiographic follow-up period was 2.8 years. Sixty-two hips underwent revision secondary to aseptic loosening after previous cemented total hip arthroplasty. Average preoperative Harris hip score was 51 points, which improved to 82 points. Complications included an intraoperative fracture in 45.9%. Repeat revision or component removal had been necessary in 6 patients (8.7%). An additional 14 patients (20%) had pain and radiographic evidence of subsidence. Overall 5-year survivorship free of moderate pain or revision was 82% for the entire group, but was 58% for the fracture subgroup at 4 years.