Clinical Results of the Transtrochantecic Rotational Osteotomy of the Femoral Head for Osteonecrosis
1998
Seventeen hips in sixteen patients who had osteonecrosis of the femoral head were treated using the transtrochanteric rotational osteotomy. One deep infection and two postoperative intertrochanteric fractures occurred and they were managed with salvage operations such as arthrodesis and femoral endoprosthesis. Out of the remaining fourteen hips, eight had neither hip pain nor progressive collapse of the femoral head. The other six hips, four of which showed progressive collapse, had moderate or severe pain. Preoperative intact area ratio of the posterior part of the femoral head on a lateral X-ray and postoperative intact area ratio of the weight-bearing part on an anteroposterior X-ray were found to be significantly associated with postoperative collapse of the femoral head.
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