Patients Receiving a Primary Unicompartmental Knee Replacement Have a Higher Risk of Revision but a Lower Risk of Mortality Than Predicted Had They Received a Total Knee Replacement

Patients Receiving a Primary Unicompartmental Knee Replacement Have a Higher Risk of Revision but a Lower Risk of Mortality Than Predicted Had They Received a Total Knee Replacement: Data From the National Joint Registry for England, Wales, Northern Ireland, and the Isle of Man
J Arthroplasty. 2020 Sep 7;S0883-5403(20)30972-4. doi: 10.1016/j.arth.2020.08.063.

• Analysis of National Joint Registry data indicates that Unicompartmental Knee Replacement (UKR) revision rates were substantially higher than Total Knee Replacement (TKR) even when demographics and caseload differences were accounted for. However, fewer deaths occur after UKR. Re-revision rates were similar between revised UKRs and TKRs, but considerably higher than for primary TKR, therefore UKR cannot be considered an intermediate procedure.