Knee osteoarthritis is a degenerative disease which affects around 13.6% of Canadians aged 20 years and older, impairing normal knee function. In Ontario alone, 44,000 surgical procedures are done for arthritis related issues. For people with advanced stages of the disease, Total Knee Arthroplasty is recommended as multiple compartments of the knee are impacted. The purpose of this project was to design a knee implant to be used by patients aged 60-80 years old .A total knee replacement prosthesis consists of four main components to replicate the shape and reproduce the motion of a healthy knee: the femoral component, the tibial component, the plastic spacer, and the patella component. The design features a metal on plastic design using oxidized zirconium for the tibial and femoral components, and highly cross-linked polyethylene for the bearing and the patellar component. The metal on plastic design is ideal due to its low cost, high lifespan, and minimal noise in motion. The implant is cruciate retaining, this design is meant for individuals who have a healthy and functional PCL. The method of fixation to be used for the designed prosthesis is cement fixation. In this project we performed contact analysis, bone stress analysis, and and FEA study by utilizing Solidworks.
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