Abstract
Results: The mean preoperative Harris hip score of 52 improved to 89 (P b .01). Nine well-fixed cups were revised (4 for osteolysis, 3 for infection, 1 for instability, and 1 incidentally at femoral revision), and 2 were revised for loosening. An additional 17 hips required reoperation for wear of the liner or osteolysis. Four cups were radiographically loose. Kaplan-Meier survivorship at 20 years was 94% (revision for loosening or radiographic loosening) and 86% with an end point of reoperation for a problem related to the component. Osteolysis was identified in 38 hips (18.6%).
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