Fig. 1

Radiographic images of patient #1 before and after THA. a Pre-operative radiograph showing advanced hip osteoarthritis and a femoral nail from previous fracture approximately 20 years prior. b Post-operative radiograph from the first procedure (Stage 1) after the femoral nail was removed and the void was filled with V-CBA to rebuild the bone stock. c Post-operative radiograph from second procedure (Stage 2) showing the hip replacement hardware. The second procedure was performed 7 weeks after the first procedure