Fig. 4

Osteolysis around the femoral stem. a Preoperative anteroposterior radiograph of the right hip showing osteoarthritis. b Immediate postoperative anteroposterior radiograph showing a well-fixated metal-on-metal articulated total hip arthroplasty. c–d An anteroposterior radiograph of the right hip at 11 years after operation. Computed tomography (coronal view) image before revision, showing an osteolysis around the proximal femoral stem, especially the greater trochanter (white arrow). e One year after revision with bone grafting around the greater trochanter. f An anteroposterior radiograph of the right hip at 21 years after total hip arthroplasty