Some of the old names for anterior knee pain are runner's knee or chondromalacia patella.
Pain behind the kneecap or anterior knee pain occurs at the centre and front of the knee. It occurs when the kneecap does not move properly and rubs against the femur, if there is tightness in the thigh muscles, or if the kneecap is placed under stress from physical activity. Anterior knee pain is often referred to as patellofemoral pain syndrome (anterior knee pain syndrome) and is a common sports or degenerative condition. The majority of patients respond well to non-surgical treatment consisting of weight loss reduction analgesia, physiotherapy, anti-inflammatories and strapping. Occasionally surgery is recommended.