Iliotibial friction band (ITB) syndrome typically causes pain at the outer (lateral) aspect of the knee where the (ITB) crosses the knee joint. The ITB is a long band of tissue that runs down the outer side of the leg and attaches below the knee. ITB friction syndrome describes a condition where the band rubs against a bony prominence at the outer aspect of the knee and causes inflammation and& pain. This condition is commonly seen in runners.
What are the symptoms of ITB friction syndrome?
Pain is usually experienced at the outer aspect of the knee. Patients usually experience an ache that may increase to a sharper pain with activity. The outer part of the knee may be tender to touch with potential swelling. In the morning or following activity (once the body has cooled down) is generally when pain is at its worst. Pain is also typically experienced during activities that bend or straighten the knee particularly whilst weight bearing, for example running, squatting or jumping.