Fig. 3. A 58-year-old male who had received revision total hip arthroplasty. (A) A preoperative radiograph showing stem loosening. (B) A postoperative radiograph showing revision total hip arthroplasty with a Revitan® stem (Zimmer, Warsaw, IN, USA) and allobone graft. (C) A postoperative radiograph taken 2 years later. (D) A radiograph taken 6.8 years later showing a stable prosthesis with bone ingrowth and good union.