This is a prospective, multi-center, randomized study to demonstrate the safety and effectiveness of CORI. In addition, the study will support regulatory approval by the National Medical Products Administration (NMPA) in China.~The study will have two arms, the investigational group will be total knee arthroplasty (TKA) using CORI, the comparison group will be conventional approach with conventional manual instrumentation.
This is a prospective study to demonstrate the safety and effectiveness of CORI and to register CORI in China mainland.