Results and Probrems of Dual Bearing Type Endoprosthesis combined with Acetabular Bone Graft for Coxarthrosis with Acetabular Dysplasia.

概要

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We had performed dual bearing type endoprosthesis combined with acetabular bone graft for coxarthrosis with acetabular dysplasia on 38 hips for last 11 years, 3 hips being revision, and reviewed them. The clinical results showed that preoperative total average score of 44.1 points was improved to 81.4 points postoperatively, especially in pain, by Japanese Orthopaedic Association Hip Score System, but they were not interrelated to superior migration. As measured from the serial roentgenograms after the operation, superior migration mostly began during weight-bearing period. The progress of additional superior migration of the endoprosthesis was noticed in 12 of 21 hips (57.1%) over two years after the operation. CE angle after reaming before bone grafting interrelated with superior migration in CE angle plus group.
西日本整形・災害外科学会の論文