The knee joint is designed to bend and straighten. The knee may be injured by a direct blow but more commonly twisting or stretching it through a greater range of motion. Types of knee injuries may include ligament tears or sprains, meniscus or cartilage tears, strains of muscles and tendons around the knee joint and inflammation of the bursa of the knee secondary to direct blows or chronic use. Physical Therapy can help with knee injuries to help stretch and strengthen the joint and weakened structures to promote more balance, educate in proper gait and joint protection strategies as well as supervise a more structured rehabilitation regime following surgery to endure maximum range of motion and strength gains to normalize function.