The knee is the largest joint in the body. It is a complex joint that allows you to bend, straighten, and rotate your leg. The knee joint is formed by the meeting of the femur (thigh bone), tibia (shin bone), and patella (kneecap).
The knee is also one of the most commonly injured joints. Injuries to the knee can range from minor sprains and strains to serious ligament tears and cartilage damage.
