An idea of acetabular bone graft in the treatment of coxarthrosis with bipolar endoprosthesis.

概要

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Up to July, 1988 one hundred eleven patients (124 hips) with coxarthrosis were treated by bipolar endoprosthetic replacement. Of them thirty patients (32 hips) required additional acetabuloplasty with bone graft from the acetabular dysplasia.In this paper an idea of bone grafting using the excised autogenous femoral head-neck block is reported. Reviewing the cases CE angle of the bipolar head before acetabuloplasty was average 13.4 degrees (range: -20-40 degrees) and the angle improved to average 54.1 degrees after bone grafting. To evaluate the influence of excessive bone coverage on the hip motion the cases were divided into the groups at intervals of 10 degrees increase of CE angle from 40 degrees. There was no significant restriction of flexion and abduction of the hip joint by increasing bone coverage of the bipolar head.
西日本整形・災害外科学会の論文