What is patella femoral syndrome?

Patella femoral syndrome (PFS), also known as runner's knee, is a common cause of knee pain. It occurs when the patella (kneecap) rubs against the femur (thigh bone) causing irritation and pain. This irritation can result from a variety of factors, including:

Misalignment of the patella: If the patella is not properly aligned, it can cause it to rub against the femur. This can be caused by several factors, such as weak quadriceps muscles, tight hamstrings, or an abnormal foot structure.

Overuse: PFS is often seen in athletes who participate in sports that involve repetitive knee bending, such as running, jumping, and cycling.

Trauma: PFS can also be caused by a direct blow to the knee, such as falling or being tackled.

Other conditions: PFS can also be associated with other knee conditions, such as osteoarthritis, rheumatoid arthritis, and gout.

Symptoms of PFS include pain around the kneecap, especially when bending or kneeling. There may also be swelling, stiffness, and clicking or popping sensations.

Treatment for PFS typically involves rest, ice, compression, and elevation (RICE). Physical therapy can also be beneficial in strengthening the quadriceps and hamstrings and improving flexibility. In some cases, surgery may be necessary to realign the patella or repair damaged tissue.

PFS is a common condition, but it can be managed with proper treatment. By following your doctor's instructions and taking care of your knee, you can help prevent it from coming back.