The knee joint, one of the larger and more complex joints in the body, is where the patella (kneecap) meets the femur (thigh bone) and tibia (shin bone). This sesamoid bone is attached to the femur, by the quadriceps tendon, and the tibia, by the patellar tendon. The undersurface of the patella is lined with articular cartilage, that allows the patella to painlessly glide up and down the trochlear groove with knee movement. Patellofemoral pain syndrome is a condition in which the nerves of the knee perceive pain within the soft tissues and bone surrounding the patella. This condition, also known as “Runner’s Knee”, is often caused by chronic use of the knee joint in intensive and repetitive physical activities such as running and squatting. Dr. Matthew T. Provencher, orthopedic knee specialist serving patients in Vail, Aspen, Colorado Springs, and the Denver, Colorado area, has the knowledge and understanding, as well as substantial experience in treating patients who have experienced patellofemoral pain syndrome.