“…Proper technique, component design, and materials for long-term durability in this age group are paramount due to the magnitude of the loads and the cycles of service these knees will be required to perform. Although there has been a dramatic rise in the numbers of TKAs performed in this population, there are very few long-term studies [4,7,12,13] in this younger population, especially in patients with OA [5,6]. The longest term studies of younger patients have reported survivorship up to 93.7% at 20 years [4], and survivorship of 96% and 85% at 10 and 15 years, respectively, for cohorts consisting entirely of patients with OA [6].…”