Top Story

UKA revised to TKA, TKA revision yielded similar outcomes

April 28, 2016

Patients who underwent unilateral knee arthroplasty revised to total knee arthroplasty experienced outcomes similar to patients who underwent revision total knee arthroplasty following primary arthroplasty, despite primary to revision total knee arthroplasty being a more difficult procedure with a higher percentage of re-revisions, according to results.

Utilizing the Norwegian Arthroplasty Register between 1994 and 2011, researchers identified 768 failed primary total knee arthroplasties (TKAs) and 578 failed primary unilateral knee arthroplasties (UKAs) which were revised to TKAs. Patient-reported outcome measures (PROMs) used included the EuroQol EQ-5D, the KOOS and VAS to assess patient satisfaction and pain. To assess the survival rate and the risk of re-revision, researchers performed Kaplan-Meier and Cox regression analyses that adjusted for the propensity score, while multiple linear regression analyses were used to estimate the difference between the groups in mean PROM scores.

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