• Seamus O'Brien, David J Spence, Luke O Ogonda, and David E Beverland.
• Outcome Assessment Unit, Musgrave Park Hospital, Belfast, Northern Ireland.
• Knee. 2012 Aug 1; 19 (4): 335-8.

BackgroundPatellar 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.MethodsWe 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.ResultsFour 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.ConclusionNon-resurfacing of the patella does not adversely affect the outcome of the LCS mobile bearing TKA at minimum 10 years follow-up.Copyright © 2011 Elsevier B.V. All rights reserved.

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