[The vascularized pedicled flap of superior gluteal artery to hip bone chip--a new concept in the revascularization of hip necrosis in adults].

The development and introduction of microsurgical technique has made possible completely new concept of revascularisation surgery in femoral head necrosis. The bone graft described in this presentation is a pedicled one from the lateral ilium. In five femoral head necrosis a pedicled corticocancellous pelvic graft, supplied by the deep branch of the superior gluteal artery, was transplanted in the femoral head. In all cases it was possible to lift out the pelvic graft from the same side as the affected hip joint. Contrary to the medial iliac bone graft (deep circumflex iliac artery) the lateral iliac bone graft (deep branch of the superior gluteal artery) is inserted into the femoral head dorsally. Preoperatively and postoperatively performed selective angiographies are necessary and presented. In all cases an unimpeded perfusion could be shown three months postoperatively. Advantages and indications of the pedicled bone graft are discussed.