Acetabular exposure for posterior wall and posterior column up to sciatic notch. Patient is placed in lateral decubitus position or prone with ipsilateral knee flexed to 45¡ to relieve tension on sciatic nerve. Incision runs from superior edge of greater trochanter and is curved proximally to superior iliac spine. Gluteus maximus and fascia lata are then exposed, fascia lata is incised, and detachment of external rotators is performed, with retraction over sciatic nerve to expose posterior column.