All-Polyethylene Vs Metal-Backed Tibial Components in Total Knee Arthroplasty: A Meta-Analysis .
All-Polyethylene Versus Metal-Backed Tibial Components in Total Knee Arthroplasty: A Meta-Analysis of Randomized Controlled Trials.
J Arthroplasty . 2024 May;39(5):1353-1360.Nine studies including 1,405 patients with primary knee osteoarthritis were included in this systematic review and meta-analysis comparing all-polyethylene (AP) versus metal-backed (MB) tibial components in total knee arthroplasty (TKA). Pooled outcomes of interest included radiolucent lines, component positioning, knee scores, knee range of motion (ROM), quality of life, and postoperative complications. The frequency of radiolucent lines was significantly higher in the MB group than in the AP group, while no differences were found in clinical outcomes, quality of life, or complications. The main finding suggests that AP tibial components perform similarly or better than MB components without significant clinical disadvantages.
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