Unicompartmental arthroplasty is a replacement of the joint in only one of the three knee compartments.
![partial knee replacement](/sites/default/files/users/user1/pkr.jpg)
Tibiofemoral UKR.
![hemicap patellofemoral replacement](/sites/default/files/users/user1/hemicap-ap.jpg)
Patellofemoral UKR.
Synonyms:
unicompartmental knee replacement
UKR
UKA
PKR
partial knee replacement
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Tibiofemoral UKR.
Patellofemoral UKR.