Patellar resurfacing and implant design do not decrease knee pain after TKA .
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Patellar resurfacing in total knee arthroplasty: does design matter? A meta-analysis of 7075 cases
J Bone Joint Surg Am. 2011 Jul 20;93(14):1301-9. doi: 10.2106/JBJS.J.0059418 Level-I RCTs with 7075 total knee arthroplasties (3463 in the resurfacing group and 3612 in the non-resurfacing group) were selected for the meta-analysis to compare outcomes after patellar resurfacing or non-resurfacing, in terms of reoperation rates, incidence of anterior knee pain, and functional scores. Secondary analyses were conducted to compare the same outcomes with regards to patella-friendly and non-patella-friendly implant designs. The results indicated that resurfacing had no effect on anterior knee pain, but reduced re-operation rates. The implant design also had no effect on re-operation rates.
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