A partial knee arthroplasty replaces part of the knee joint with an implant.
Partial knee arthroplasty replacing one tibiofemoral compartment.
The replaced compartment could be one of the tibiofemoral joints or/and the patellofemoral joint.
Synonyms:
Partial knee replacement
Unicompartmental knee replacement
Patellofemoral resurfacing
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Also relevant -
eBook - Knee arthritis interventions when you are too young for a total knee replacement
Easy-to-follow eBook about what is available if you have knee arthritis and are too young for a knee replacement.