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Femoroacetabular Impingement (FAI)

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Updated March 23, 2009

Definition: Femoroacetabular impingement is the condition that occurs when bone spurs form around the hip joint, causing the bone to pinch together when the hip is moved. Bone spurs can form just below the ball of the ball-and-socket hip joint, or just adjacent to the socket.

FAI occurs when the bone spurs pinch together as the hip moves. FAI can cause hip labral tears and may be one of the early signs of hip arthritis. Treatment of FAI can be accomplished with an arthroscopic procedure to shave down the bone spurs, called an osteoplasty.

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