Fig. 1A–D.

A case is presented in which the femoral component was revised for aseptic loosening. (A) The preoperative radiograph of the right hip of 43-year-old man who presented with pain and discomfort reveals the presence of avascular necrosis. (B) Immediate postoperative radiograph reveals treatment with primary cementless total hip arthroplasty. (C) Radiographs at 20 months postoperative reveal radiolucency in zone 3 of the acetabular component and zones 2, 3, 5, and 6 of the femoral component, with pedestal formation noted and evidence of subsidence. (D) Radiograph reveals treatment with revision total hip arthroplasty including the acetabular liner, the femoral head and the femoral component.