LCS mobile bearing total knee arthroplasty without patellar resurfacing. Does the unresurfaced patella affect outcome? Survivorship at a minimum 10-year follow-up

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• 作者：Seamus O'Brien ; David J. Spence ; ^{djspence975@gmail.com} ; Luke O. Ogonda ; David E. Beverland
• 关键词：Total knee arthroplasty ; Unresurfaced patella ; 10  ; year follow-up ; Outcomes
• 刊名：The Knee
• 出版年：2012
• 期刊代码：181_09680160
• 类别：med
• 出版时间：August, 2012
• 卷：19
• 期：4
• 页码：335-338
• 文件大小：347 K

摘要

Background

Patellar resurfacing during total knee arthroplasty (TKA) remains controversial. The aim of this study was to evaluate the long-term outcomes of a mobile-bearing TKA without patellar resurfacing.

Methods

We assessed the outcomes in 503 patients (600 knees) who had cemented LCS (low contact stress) mobile bearing TKA without patellar resurfacing at a minimum follow-up of 10 years. Clinical outcome scores and radiological assessment were used.

Results

Four knees were revised, two had bearing dislocation and nine patients (1.5%) had secondary resurfacing for anterior knee pain. There were no radiolucent lines or osteolytic defects on radiographic evaluation.

The overall survivorship was 97.8%with re-operation for any reason as the endpoint.

Conclusion

Non-resurfacing of the patella does not adversely affect the outcome of the LCS mobile bearing TKA at minimum 10 years follow-up.