A posterior cruciate ligament tear / strain is an injury caused by overstretching, tearing or rupturing of the posterior cruciate ligament of the knee. The function of this ligament is to prevent the femur (thigh bone) from sliding off the anterior edge of the tibia (shin bone) and to prevent the tibia from displacing posterior to the femur. Common causes of injury to this ligament are the knee hitting the dashboard in an automobile accident or falling hard on the knee e.g. during participation in a sporting activity. The usual symptoms of this injury are pain, swelling, tenderness and potential instability of the knee joint. The bracing products below will keep the femur and tibia in the correct positions relative to each other and thus permit proper healing of the posterior cruciate ligament after an injury to it. Please consult with your doctor in order to ensure that the brace you choose will be right for your particular injury and your intended activity level.