Oxford Unicompartmental Knee Arthroplasty Versus Total Knee Arthroplasty - Long Term Functional Outcomes and Survival Analysis

Description

In this presentation, Elizabeth Lindsay discusses her recent project comparing the long-term functional outcomes and survival analysis of the Oxford unicompartmental knee arthroplasty (UKA) versus total knee arthroplasty (TKA) in age- and gender-matched populations. She introduces the context of the study, noting that although unicompartmental has better patient-reported outcomes, it is underutilized in the UK with only 10% of procedures being unicompartmental. The project aimed to address the gap in literature regarding long-term outcomes, referencing a previous study (TOPCAT) which focused on medium-term outcomes and found fewer complications with UKA but a higher revision rate. Elizabeth explains the methodology, which involved a retrospective study design using the same patient cohort as the earlier study. Through objective measures like the Knee Society Score, she presents that while preoperative pain scores were similar, TKA showed better postoperative pain relief, whereas UKA performed better in functional scores. She highlights that TKA had a lower rate of revisions and represented a longer implant longevity compared to UKA, which had higher rates of complications. Both procedures had their merits, with UKA offering better function and fewer complications but less durability. Elizabeth concludes that these findings are vital for informed patient decision-making regarding knee arthroplasty options.

DOI: 10.1302/3114-221620

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