Revision Of Knee Replacement Introduction Revision Knee Replacement means that part or all of your previous knee replacement needs to be revised. This operation varies from very minor adjustments to larger operations replacing all of the previous implants. The typical knee replacement replaces the ends of the femur (thigh bone) and tibia (shin bone) with plastic inserted between them and usually the patella (knee cap). Why does a knee replacement needs to be revised? Plastic (polyethylene) wear – This is one of the easier revisions where only the plastic insert is changed. Instability – This means the knee is not stable and may be giving way or not feel safe when you walk. Loosening of either the femoral, tibial or patella component – If the implants lose their attachment to the bone there is micromotion that causes pain. Revision is required. Infection- usually presents as pain but may present as swelling or an acute fever. Osteolysis (bone loss). This can occur due to particles being released into the knee joint that result in bony erosion and loosening of the implants. Stiffness- This is difficult to improve with revision but can help in the right indications. Pre-Operation I will organise routine blood tests and any other investigations required prior to your surgery You may be asked to undertake a general medical check-up with a physician You should have any other medical, surgical or dental problems attended to prior to your surgery Make arrangements for help around the house prior to surgery Cease anticoagulants such as aspirin, Cartia, Plavix, warfarin, Xarelto etc 7 days prior to surgery as they can cause bleeding Cease any naturopathic or herbal medications 10 days before surgery Stop smoking as long as possible prior to surgery