The Epidemiology of Deltoid Ligament Sprains in 25 National Collegiate Athletic Association Sports, 2009–2010 Through 2014–2015 Academic Years

Context:  Deltoid ligament sprains among collegiate student-athletes have not been extensively investigated. Research regarding the mechanisms, participation-restriction time, and recurrence of deltoid ligament sprains in collegiate student-athletes is lacking. Objective:  To describe the epidemiology of deltoid ligament sprains in 25 National Collegiate Athletic Association championship sports. Design:  Descriptive epidemiology study. Setting:  National Collegiate Athletic Association Injury Surveillance Program. Main Outcome Measure(s):  We analyzed deltoid ligament sprains recorded in the Injury Surveillance Program for the 2009–2010 through 2014–2015 academic years. Deltoid ligament sprain injury rates, rate ratios, and injury proportion ratios with 95% confidence intervals (CIs) were reported. Results:  During the study period, 380 deltoid ligament sprains were reported, resulting in a combined injury rate of 0.79/10 000 athlete-exposures (AEs; 95% CI = 0.71, 0.87). Most deltoid ligament sprains occu...