Knee Treatment by Yogesh Sisodia. In arthritis, Joints behave like a rusted door hinge Arthritis makes the patient feel old even though they are still in the prime of life making them to curb or to quit the activities they want to enjoy Ligament Injuries There are 4 major ligaments in the knee. Ligaments are elastic bands of tissue that connect bones to each other and provide stability and strength to the joint. The four main ligaments in the knee connect the femur (thighbone) to the tibia (shin bone), and include the following: Anterior cruciate ligament (ACL). The ligament, located in the center of the knee, that controls rotation and forward movement of the tibia (shin bone). Posterior cruciate ligament (PCL). The ligament, located in the back of the knee, that controls backward movement of the tibia (shin bone). Medial collateral ligament (MCL). The ligament that gives stability to the inner knee. Lateral collateral ligament (LCL). The ligament that gives stability to the outer knee. Knee Replacement Knee replacement, also called knee arthroplasty or total knee replacement, is a surgical procedure to resurface a knee damaged by arthritis. Metal and plastic parts are used to cap the ends of the bones that form the knee joint, along with the kneecap. This surgery may be considered for someone who has severe arthritis or a severe knee injury. The goal of knee replacement surgery is to resurface the parts of the knee joint that have been damaged and to relieve knee pain that cannot be controlled by other treatments.