Patellofemoral syndrome is a condition that describes pain in the front of the knee and around the kneecap, known as the patella. Doctors may also call patellofemoral syndrome “jumper’s knee” or “runner’s knee.”
Common causes of the condition are overuse of the knee joint and trauma, such as hitting the kneecap or falling on it. Although the condition occurs more commonly in athletes, anyone can have the symptoms. Some people have a kneecap that abnormally tracks or moves in the groove at the end of the femur. This can cause extra pressure on the cartilage covering the kneecap or on the femur where it rubs, called the trochlear surface.
While patellofemoral syndrome can cause symptoms that range from uncomfortable to very painful, the condition can usually be treated at home. You may be able to reduce your pain with rest and conservative treatment measures.
The hallmark symptom associated with patellofemoral syndrome is a dull, aching pain that usually occurs on the front of the knee. The pain may be in one or both knees. It often worsens with activity.
Additional symptoms include:
Patellofemoral syndrome is not characterized by locking of the knee joint. If a person has this symptom, it usually means they have another injury type, such as a meniscal tear.
A doctor usually diagnoses the syndrome by conducting a physical exam. They’ll ask about what makes your pain worse or better. They’ll also feel your kneecap for signs of instability and ask you to engage in range-of-motion exercises.
While a doctor can usually diagnose patellofemoral syndrome without imaging studies, they may order an X-ray to rule out other potential injuries.
Because patellofemoral syndrome often results from overuse and overactivity, resting the affected joint can often help treat the underlying problem. Try these treatment options:
Preventing future episodes of patellofemoral pain can mean alternating your activities to avoid overuse. If you do high-impact activities, such as running or playing a sport, try doing a low-impact activity the next day, such as swimming or riding a bicycle. Wearing supportive footwear and stretching before and after exercising also may help.
The exercises below stretch and strengthen the muscles that attach to the muscles that act on the knee. Doing them can help reduce patellofemoral pain. Stretches for the calves and hamstrings can also help reduce tension associated with patellofemoral syndrome.
This exercise strengthens the quadriceps muscles on the front of the upper thigh.
This stretch is excellent to do after the leg extension exercise because it stretches the muscles that were just worked.