Femoroacetabular impingement (FAI) is a condition in which extra bone grows along one or both of the bones that form the hip joint — giving the bones an irregular shape. Because they do not fit together perfectly, the bones rub against each other during movement.
A common cause of
Radiographs to assess anterior coverage of the femoral head
CT can be used as adjunct to assess for structural abnormalities
MRI best modality to evaluate for articular cartilage, and labral degeneration and tears can assess anatomy of femoral head/neck junction abnormalities