Hip impingement may occur in the setting of developmental or congenital deformity and cause labral tearing, early arthritis, or other derangements of the joint. Often times minor impingement and labral tears can be treated via hip arthroscopy, but in the setting of larger deformity, a surgical dislocation of the joint may need to be performed to safely access the impingement lesion and adequately treat the underlying deformity.
In this procedure an osteotomy (boney cut) is performed on the femur to allow for the dislocation of the hip while preserving the blood supply to the femoral head. Once dislocated, the femoral head is re-contoured to remove the source of impingement or cam lesion. The labrum is often repaired under direct visualization as well. The osteotomy is then fixed with screws.