Physical Therapy after Medial Patellofemoral Ligament (MPFL) Reconstruction Medial Patellofemoral Ligament (MPFL) reconstruction is a surgical procedure to help people who have patellar instability. Whether it’s a traumatic dislocation or repetitive instability episodes, MPFL reconstruction is a procedure that really helps people restore function lost with the injury. Patellar instability can affect both athletes and