The labrum is the cartilage that lines the socket (acetabulum) in which the ball of the hipbone (femur) sits. This cartilage provides cushioning for the joint. It also helps keep the ball in the socket. A tear in the labral cartilage can result from injury or degeneration, such as from osteoarthritis.
In most cases, labral tears don't cause symptoms and don't need surgical repair. But occasionally they can cause symptoms such as:
- Locking or catching in the hip joint
- Pain in the hip or groin area
Labral tears are difficult to detect on physical examination. A doctor can confirm the diagnosis with contrast-enhanced magnetic resonance imaging (MRI). Treatment may include:
- Physical therapy
- Corticosteroid injections
- Arthroscopic surgery
