The wear of polyethylene components in total knee replacements is one of the major factors limiting the longevity and success of knee replacements. The project will use finite element analysis and mathematical wear calculations to model wear in a total knee replacement. The comparison between the model and physical results will enable verification of obtaining the wear coefficient from pin-on-disk and ball-on-flat test. The completion of the project will contribute to the development of a fast and efficient method for comparing and analyzing total knee replacements. The completed wear model will be very beneficial to the Musculoskeletal Innovation Product Development Centre as it will enable the comparison between different implant types, and open up possibilities for individual factors which effect wear to be investigated.