Partial Knee Replacement

Although not as common as total knee replacement, a partial (unicompartmental) knee replacement is an alternative in some cases. The designs of the partial knee replacement devices have improved over the years but are still composed of a combination of metal and plastic pieces. The partial knee replacement also utilizes smaller, minimally invasive incisions to perform the procedure. The partial knee replacement is used to replace a single part of the three parts of the knee, the medial (inner) part, the lateral (outer) part, and the patellofemoral (kneecap) part. If the damage is limited to either the medial or lateral part of the knee, that part can also be treated with a partial replacement.