Function after XXXX resection involving the acetabular ring.

@entity1 @entity3656 @entity5 @entity158
Seven @entity1 subjected to @entity5 resection involving the acetabular ring were analyzed with respect to function. In addition to conventional clinical assessment gait was analyzed objectively by means of an electronic walk-way and residual hip-muscle power tested by means of a Cybex II dynamometer. Functional results reported by the @entity1 with respect to @entity158 , walking and working capacity appeared better than those elicited by clinical examination. All @entity1 exhibited a marked pelvic tilt and a positive Trendelenburg sign. Only one @entity1 walked without any kind of support. @entity3656 was on an average 6 cm. Objective gait analysis disclosed that all @entity1 had reduced weight-bearing time on the operated side as compared to the non-operated. This, however, was clearly less pronounced for those @entity1 who appeared best with respect to @entity158 , walking and working capacity. These @entity1 also showed the best hip extension power which appeared more important from a functional point of view than hip flexion and, surprisingly, hip abduction power. Radiographic examination showed that bony support for the proximal femur, provided either by the formation of a bone shelf from the remaining iliac bone or by the remaining iliac bone itself, was of decisive importance for function. The results of the present study show that @entity5 resection involving the acetabular ring, provided @entity5 removal can be achieved, constitutes a feasible alternative to hemipelvectomy from a functional point of view.
