Greeshma Prabhu, BPT, M.S.The knee is the most important joint of the leg, providing stability and locomotion. This joint is formed by the articulation of the long bones of the leg called the femur (above the knee) and the tibia (below), along with a triangular bone, the patella (or kneecap), in between. Ligaments serving the knee joint are the anterior and posterior cruciate and the medial and lateral collateral ligaments.Approximately 60 degrees of knee bending (flexion) is required for normal...