What is PFPS?

Patellofemoral pain is the most common cause of pain at the front of the knee.

It occurs with ‘patella mal-tracking’ i.e. when the under surface of the patella (kneecap) slides in the grove of the femur as the knee bends and straightens as the quadriceps contract and relax.

When the knee is bent, mal tracking often causes the patella to shift laterally, causing pain with squat, moving from sitting to standing and using stairs.