Patellofemoral Pain Syndrome

Patellofemoral pain syndrome is caused by the kneecap (patella) tracking incorrectly over the knee joint. There are many causes of the syndrome, including overuse, biomechanical and muscular dysfunctions. It is common in runners, cyclists and other athletes who perform repetitive motions of the knee.

The patella is an important bone of the leg that is responsible for leg stability. Under normal conditions, it glides up and down over a groove at the end of the femur. One of the most common causes of patellofemoral pain syndrome is overuse. Overuse often occurs in runners who suddenly increase their mileage, run hills and run on uneven surfaces. A common symptom is called “movie-goers sign.” It occurs while sitting with flexed knees for extended periods of time. Flexed knees put extra pressure on the knee joint causing irritation and pain.

Biomechanical problems such as high arches or flat feet contribute to patellofemoral pain syndrome by rotating the lower leg, putting additional pressure on the knee joint. The Q-angle, or the angle of the upper leg as it meets the knee joint puts stress on the knee joint. Muscular imbalances and inflexibility can also contribute to patellofemoral pain syndrome.

The treatment of patellofemoral pain syndrome varies, depending on the source of the injury. The first step in treatment is to be evaluated by a physician or physical therapist.  If you suspect that overuse is the cause of your injury, try reducing your mileage, switching to soft surfaces or non-weight bearing activities such as swimming or biking. Movie-goers sign can be eliminated by occasionally flexing and extending the knee while sitting.

High arches and flat feet can often be corrected with arch supports or custom made orthotics to provide better support and minimize internal rotation of the lower leg. Orthotics may also help to correct problems caused by the Q-angle. Muscle imbalances can be corrected by working with a physical therapist to design strengthening exercises to correct the way that the patella tracks over the knee joint. Working with a licensed Physical Therapy will assure you achieving a full recovery and can guide your rehabilitation to assure you return to 100% as quickly and safely as possible.

For more information on patellofemoral pain syndrome, email info@proaxistherapy.com. To make an appointment for therapy, please call Proaxis Therapy at (864) 454-0904.