Unicompartmental Knee Arthroplasty (UKA) Versus Total Knee Arthroplasty (TKA) of Medial Osteoarthritis

In total (complete) knee arthroplasty (TKA), the orthopaedic surgeon removes the damaged areas of the knee and replaces the components with an artificial joint. The device that will be used is: Stryker TKA Triathlon system implant Cruciate retaining radius femur design. This device has been approved for use by Health Canada.

Unicompartment (partial) knee arthroplasty (UKA) has been available for over 40 years and differs from TKA in that only the most affected and symptomatic compartment (most commonly medial, but occasionally lateral and patella femoral) are replaced. The device that will be used is: Stryker PKR implant cemented and fixed bearing design. This device has been approved for use by Health Canada.