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Long-term results of spherical acetabular osteotomy



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Abstract

We have examined the effect of the Wagner spherical acetabular osteotomy on preserving the joint in 38 hips with a mean follow-up of 17 years. At the time of the initial operation, 55% of patients had clinical symptoms and 30 joints showed minimal or absent radiological signs of osteoarthritis. At follow-up, 54% of patients had a good functional result.

The osteotomy improved the mean centre-edge angle from −3° to +15°, the mean anterior centre-edge angle to 23° and the acetabular head index to 75%. The obliquity of the acetabular roof decreased from 28° to 16°. One patient improved, but 14 deteriorated with joint degeneration. Of these, one progressed because of postoperative deep-tissue infection and five due to undercorrection. One patient needed total joint replacement after 14 years. At 17 years after operation, Wagner osteotomy had prevented progression of secondary arthritis in 63% of cases.


Correspondence should be sent to Dr M. Schramm.

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