Abstract
Purpose of Study
To identify the early functional outcomes, survivorship and complications associated with the Corin Uniglide Unicompartmental Knee Replacement (UKRs) from an independent centre.
Methods and Results
A prospective consecutive case series of sixty Uniglide UKRs was carried out in fifty-one patients between January 2006 and March 2009. The data collected included:
Primary outcome measures:
Pre- and post-operative American Knee Society Score (AKSS), Oxford Knee Scores (OKS), WOMAC
Survivorship
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Secondary outcome measures:
X-ray error scores assessing component position
Complications
No cases were lost to follow-up. Mean follow-up time was 19 months (12 to 36months) and mean age was 66 years (39 to 78 years).
Kaplan-Meier Survivorship showed 95% survival at 3 years (CI:6.4).
All functional outcomes showed significant improvement p <0.05. There were two revisions within the first year, which were the main complications, secondary to aseptic tibial loosening and collapse of the posteromedial tibia. The x-ray error score identified the most common error as the femoral flexion/extension angle followed by the anterior/posterior fit.
Conclusion
The Uniglide UKR provides a significant improvement in early knee functional outcome and satisfactory short-term survivorship with an acceptable complication rate.