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The purpose of this study was to assess the prevalence of multicenter studies in the orthopedic literature compared to general medicine and other surgical subspecialty studies as an update to a previous study. The number of multicenter research studies across three orthopedic surgery journals was higher in 2021 compared to 2009 (7.2% [95% CI: 5.1%−9.4%, χ2 [df = 1 = 43.8]], p < 0.0001), as was...