What is Femoroacetabular Impingement (FAI)
Femoroacetabular impingement, also called hip impingement, is a painful condition that occurs when the bones of the hip joint do not fit together as they should. FAI is marked by extra bone that develops either on the ball (femoral head) and / or socket (acetabulum) bones of the hip joint. The extra bone results in an irregular shape of the ball and / or socket leading to premature contact between the bones with hip motion. Over time, the bones begin to rub or pinch against each other causing friction, joint damage, pain and limited activity.
The labrum is a cartilaginous ring that sits circumferentially around the rim of the acetabular socket. It plays an important role in protecting the articular cartilage and contributes to hip stability. Either in an acute traumatic setting or more slowly over time, impingement of the hip joint can lead to damage and tears of the labrum. Additionally, hip impingement can damage the articular cartilage that covers the ball and the socket, which results in early arthritis.
Dr. Leslie Vidal, hip arthroscopist and orthopedic hip specialist successfully treats patients from Vail, Eagle and Summit County, and those in the surrounding Denver area with FAI or femoroacetabular impingement.