Abstract
We studied the radiographs of 211 low-friction arthroplasties, followed for five to 15 years after operation. The first 92 simple hemispherical sockets were fixed with an old technique: eburnated bone in the acetabular roof was removed and only a few large anchor holes were bored for cement fixation. With the next 119 sockets, 111 of which were flanged, the eburnated and subchondral bone was preserved and multiple small anchor holes were used. The modified technique and the use of flanged sockets significantly improved the late radiological findings as regards socket demarcation and wear. On the femoral side, the intramedullary canal filling ratio, the distal packing of cement, calcar resorption and atrophy of the femoral cortex were correlated with prosthetic subsidence.
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Schedule a callMore From: The Journal of Bone and Joint Surgery. British volume
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