Abstract
We reviewed the midterm results of 173 hydroxyapatite-coated screw cups. The average follow-up was 6.5 years (range, 5–9 years). The follow-up rate was 93%. Patients were assessed using the Merle D'Aubigne–Postel clinical scoring scale and by radiographic review. Two patients had revision surgery for recurrent dislocation (1.2%), 3 patients were revised for aseptic loosening (1.7%), 1 patient underwent revision surgery because of deep prosthetic infection (0.6%), and 2 patients were revised for polyethylene wear without loosening (1.2%), which gave a total revision rate of 4.7%. The average postoperative Merle D'Aubigne–Postel scores were 5.7 for pain, 5.5 for range of motion, and 5.4 for function. Copyright 2002, Elsevier Science (USA). All rights reserved.
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