Femoral Acetabular Impingement (FAI)
FAI occurs when the friction in the hip joint is to high and as the ball of the femur rubs on the socket of the pelvis damage occurs.
There are two basic forms – CAM deformity and pincer deformity. In the CAM deformity the ball is not spherical and therefore its movements are affected and problems can result.
Pincer deformity refers to the labral cartilage getting pinched due to the socket covering too much of the ball.
The two most often coexist and can result in:
- Cartilage damge
- Labral tears
- Hip osteoarthritis
- Hyperlaxity