Implant Loading Knee Replacement Surgery
For understanding normal and pathologic knee function knowledge of forces in the knee joint is essential. It forms the basis for joint replacement surgery, for optimizing implant design and fixation and for improving and verifying analytical biomechanical models of the knee joint. With instrumented knee implants developed at the Julius Wolff Institut (Charité Berlin) the knee joint forces and movements can be measured in vivo during different activities. Six strain sensors and an inductively powered telemetry transmitter inside the tibia component of the knee joint measure the load components and transmit the data to an external computer system. First results show that the knee joint is heavily loaded. During walking the resultant force is typically about 250 % of the body weight (BW). Going downstairs the knee joint is even loaded with up to 350 %BW. For answers to Health Savings Account Question Selected Benefits website has the answers.