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Partial Knee Replacement

Case

 

This 62-year-old man had debilitating knee pain which he described as “having a screwdriver being driven into” his knee. He underwent an arthroscopic knee surgery which showed a cartilage tear as well as arthritis isolated to the medial (inside) compartment of his knee. The arthroscopic surgery gave him several months of relief, but then the pain recurred.

Post-operative

 

This patient underwent a uni-condylar (partial) knee replacement. When arthritis is isolated to one area of the knee, sometimes a partial knee replacement is indicated. This can be advantageous because the surgery retains more of the natural structures of the knee, allowing it to function more normally than after a total (complete) knee replacement. The surgery is also less invasive than a total knee replacement, which can make recovery easier for the patient. Dr. Kuhn uses the Oxford knee, which has a mobile bearing which simulates normal knee mechanics and has a 30-year history of success in Europe. This patient experienced excellent pain relief and has no activity restrictions.

Pre-operative

 

An x-ray shows “bone-on-bone” changes consistent with complete wearing away of the joint surface cartilage in the medial knee.