Patellar Resurfacing in Primary Total Knee Arthroplasty: A Meta-Analysis of Randomized Controlled Trials
OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2020;8(2):4 J Bone Joint Surg Am. 2012 Dec 19;94(24):2270-8.What this means for my practice?
Results of this study suggest that patients receiving patellar resurfacing during TKA are less likely to require re-operation, especially due to anterior knee pain, compared to TKA alone. Functional outcomes may also be significantly improved with patellar resurfacing, however results are varied. This study was limited by the variation in implant designs, as well as the wide range of follow up schedules and small sample sizes in several of the included studies.
Study Summary
20 studies were included in this meta-analysis comparing total knee arthroplasty with or without patellar resurfacing. The primary outcome of interest was the knee component of the Knee Society Score (KSS). Secondary outcomes of interest included the functional component of the KSS, re-operation rate (any reason, due to anterior knee pain, due to patellofemoral complications, due to non-patellofemoral complications), anterior knee pain, patient satisfaction, the Oxford Knee Score (OKS), the Knee Injury and Osteoarthritis Index Score (KOOS) and range of motion. Results revealed significant differences in the knee and functional KSS components, risk of re-operation for any reason and risk of re-operation due to anterior knee pain in favour of the patellar resurfacing group. All remaining pooled outcomes were not significantly different between the two groups.
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