Extended trochanteric osteotomy. A and B, Acetabular loosening with damage to femoral head. Porous femoral component has been cemented and remains well fixed, but femoral revision is required because head is not modular. C and D, Extended trochanteric osteotomy greatly simplified removal of femoral component and cement without bone loss and facilitated acetabular exposure. Note formation of callus around osteotomy at 3 months. SEE TECHNIQUE 3.14.