IT band syndrome is usually thought of as a friction syndrome between the IT band and the lateral aspect of the femur. The irritation usually occurs on the outside of the lateral knee where the IT band crossed the knee joint.
Recent evidence has shown that this syndrome is due to irritation of a fat pad that is located between the IT band and the femur. When irritated the movement of the knee joint becomes painful and there is pain over the distal IT band. A popping or snapping sensation can be felt when the knee is bent and possible swelling can occur at the location. Treatment of IT band syndrome can respond well to ART, FRR and acupuncture as well as a rehabilitation program targeted at the hip and pelvis musculature to correct any biomechanical problems contributing to the syndrome.