Summary: with a channeled plastic piece with a metal stem. Depending on the condition of the kneecap portion of the knee joint, a plastic button may also be added under the kneecap surface. The posterior cruciate ligament is a tissue that normally stabilizes each side of the knee joint so that the lower leg cannot slide backward in relation to the thigh bone. In total knee
Image Dimensions: 470 x 356
Image originally found here.