TREATMENT OF AVASCULAR NECROSIS OF THE FE MORAL-HEAD WITH INTERTROCHANTERIC OSTEOTOMY

Thirtynine patients who suffered a segmental ischemic necrosis of the hip, fifteen of which affected on both sides, were treated with osteot omy of the femur. The reexaminations were carried out after an average period of 6.6 (2.5-12) years. While in twenty one cases, the hip necr osis was treated exclusively by varisation, in thirty three cases a co mbination of varisation and flexion was effected. 12 patients (equival ent to 22.2%), all of them with a necrotic angle of more than 115 degr ees, were provided with a total hip arthroplasty in the interval. The patients with a necrotic angle smaller than 115 degrees showed a defin ite alleviation of the pain symptoms, an increased hip flexibility and an improved locomotory pattern.