Rationale and Indications for the ???Hanging Hip??? Procedure A Clinical and Experimental Study

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Abstract
Our indications for the “hanging hip” procedure** were osteoarthrosis. post-traumatic necrosis or idiopathic osteonccrosis of the femoral head. Our series of 71 patients was divided into 2 groups. The clinical data are summarized in Table 1. One group contained 53 hips for which the indication for the procedure was that the hip still maintained good overall congruity and there were no signs of lateral or medial concentration of stress in the joint as demonstrated by localized sclerosis of the subchondral bone on X-ray. In these patients the weight-bearing surface of the joint was not decreased by the pathological changes and so (he only way of decreasing the joint pressure consisted of reducing the overall force acting on the hip (Fin. 1A). In 18 other hips the operation was carried out as a temporary measure for relieving pain, because at that time the patients were not considered to be suitable candidates for other more extensive procedures (Fig. 2A). Four of these patients underwent a subsequent osteotomy or total hip replacement.

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