The knee joint is the most important joint of the body. it helps us in sitting on the floor, stairs climbing and walking. It is made up of three bones. Femur, Tibia, and Patella. All these bones are cover with cartilage. Cartilage help in making joint friction free. Femur and Tibia attached with help of four ligaments. ACL, PCL, LCL, and MCL. ACL is most important of them all and it gets commonly injured.
