Although today’s implants are designed to last many years, it’s possible that at some point in the future — typically 15 to 20 years or more — your prosthetic will break or wear out. If you’re overweight or you engage in high-impact activities such as running or court sports, the device may fail sooner.
When a knee replacement no longer functions correctly, revision surgery is often required. During this procedure, a surgeon replaces the old device with a new one.
Revision surgery isn’t something to take lightly. It’s more complicated than a primary (or initial) total knee replacement (TKR) and entails many of the same risks.
Surgery is performed under sterile conditions in the operating room under spinal or general anesthesia. The Patient is positioned on the operating table and the leg prepped and draped. A tourniquet is applied to the upper thigh and the leg is prepared for the surgery with a sterilizing solution. An incision around 7cm is made to expose the knee joint. The bone ends of the femur and tibia are prepared using a saw or a burr. Trial components are then inserted to make sure they fit properly. The real components (Femoral & Tibial) are then put into place with or without cement. The knee is then carefully closed and drains usually inserted, and the knee dressed and bandaged.
Rehabilitation
Post-surgery rehabilitation is essential to avoid further complications such as reduction in the range of motion, muscle weakness and recurrence. Physical therapy may be initiated immediately after surgery and may be continued for up to three months. Physical therapy includes uses of crutches or walker along with strengthening and mobilization exercises to regain the strength and mobility of the join
