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- Talk
- 15/06/2021
- Canada
Technical Considerations and Survivorship of Unicompartmental Knee Replacements to Total Knee Replacement Revisions in a Single Center
Description
In this presentation, Lisa Howard from Vancouver discusses the technical considerations when performing unicompartmental knee replacements (UNI) versus total knee replacements (TKR) revisions within a single center. She begins by addressing the debate surrounding the differences in revision outcomes between UNI revised to TKR and TKR revised to TKR. She references valuable data from Norwegian and Australian databases, hinting at divergent results regarding re-revision rates and functional outcomes.
The study aims to analyze the technical considerations and clinical outcomes of both revision types. Lisa explains the inclusion and exclusion criteria for the study groups, emphasizing the significance of matching demographics such as age, BMI, and ASA scores. The findings highlight a notable variance in the reasons for revision, with progression of osteoarthritis being more prevalent in UNI revisions, whereas aseptic loosening was most common in TKR revisions.
Technical metrics show that UNI revisions required fewer augments and resulted in shorter operation times compared to TKR revisions. However, both groups exhibited similar overall complication rates and survivorship at five and fifteen years.
The study's strengths lie in its matched case-control design, which allows for better control over confounding variables, while its weaknesses are rooted in its retrospective nature and low complication rates complicating advanced statistical analysis. Lisa concludes that the significant distinctions between both revision types lie in their surgical approach rather than in average outcomes, underscoring that UNI to TKR revisions can often utilize primary components effectively.