A total knee replacement is a prosthesis that is used to replace a knee joint that is affected by arthritis. It consistents of several components: Femoral component that is shaped and sized to fit to the contour of the end of the femur bone. A tibial component which is flat and has a small stem attached to its undersurface. It sits on top of the tibia bone on the opposing side of the knee joint. Both the femoral and tibial components are made of metal alloys, comprising of cobalt-chrome or titanium. They are both fixed to the bone with a special polymer called “bone cement”. Between the femoral and tibial component is the plastic insert (“polyethylene insert) which locks in to the upper surface of the tibial component. The plastic is made of a special polymer called polyethylene which has been carefully manufactured to allow it last a long time with out wearing out. However, even with the latest manufacturing techniques, this still is similar to your articular cartilage in that it has a limited life span, and excessive forces are placed on it, it will wear out more quickly. A patellar button which resurfaces the back of your knee cap. This is also made of polyethylene. This may not be replaced all the time, and it is at the discretion of your surgeon.
Best Orthopedic Surgeon for Knee Replacement in BangaloreBest Orthopedic Knee Surgeon in Bangalore
