This content was created by our physicians and experts. By Austin T. Fragomen, MD Knock knee is an improper alignment of the knee joint. In adults, it can lead to knee pain and premature degeneration ...

Next, the two menisci between the femur and tibia are removed, as are the anterior cruciate ligament (ACL) and, in some cases, the posterior cruciate ligament (PCL). In some types of knee replacement, ...