ABSTRACT
The initial problems in hip arthroplasty with infection, poor implant design, and fatigue fractures of the implant have essentially been solved, and some authors even doubt the need for further research in these fields [I]. However, the problem of what to do when prosthetic loosening occurs remains. The results of revision surgery are not as good as those of primary replacements [2,3]. When there is major bone loss, bone grafts are used in the proximal part of the femur or the acetabulum. Autogeneic and allogeneic structural grafts have been used in the acetabul um with good initial results [4], but resorption of the graft and subsequent loosening of the implant have been reported to occur later [5,6]. Others have reported more favorable mid-term results with a similar technique [7]. On the femoral side, good short-and medium-term results have been obtained with structural grafts [8-10].
