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Background: Limited data exist on injuries in men's lacrosse at the international level. As lacrosse's popularity grows rapidly across the globe, health care providers must understand how to treat lacrosse athletes., Purpose: To analyze injury data from the 2018 Men's World Lacrosse Championship., Study Design: Descriptive epidemiology study., Methods: This study prospectively observed injuries that occurred during the 2018 Men's World Lacrosse Championship. The medical staff of each team completed injury report forms, and data were categorized into body part injury, type, mechanism, time, and location of injury., Results: Over 11 days, 1019 athletes competed in 170 games, resulting in a total of 7147 athlete-exposures (AEs). A total of 140   injuries were recorded during the tournament for an injury rate of 19.6 per 1000 AEs (95% CI, 16.4-22.7). Overall, there were more contact injuries (n = 99; 70.7%) than noncontact injuries (n = 41; 29.3%) ( P < .0001). Contact injuries most commonly affected the upper extremity, while noncontact injuries most commonly affected the lower extremity. Contusions were the most commonly reported injury type in the tournament (n = 41; 29.3%), followed by ligament sprains (n = 32; 22.9%) and muscle strains (n = 21; 15.0%). Although there was no difference between the first and second half of gameplay, the injury rate increased in the latter portion of each half (the first and third quarters vs the second and fourth quarters) ( P < .0001). A total of 4 injuries required trips to the hospital., Conclusion: Lacrosse has a unique injury profile, as it includes both overhead and collision activity as well as multidirectional, cutting movements. Understanding common injury patterns may help with treatment and prevention. Fatigue may play a role in injury rate, and future research of within-game and within-tournament fatigue should explore this relationship., Competing Interests: One or more of the authors has declared the following potential conflict of interest or source of funding: K.B.T. has received education payments from Supreme Orthopedic Systems and hospitality payments from Smith & Nephew and Stryker. K.M.S. has received education payments from Arthrex and Gotham Surgical and consulting fees from DePuy and Medical Device Business Services. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto., (© The Author(s) 2021.)

Background: Despite the common nature of orthopaedic injuries in equestrian sports, there is no published review to specifically characterize orthopaedic injuries in equestrian athletes., Purpose: To characterize orthopaedic injury patterns in equine sports-related injuries and their treatment., Study Design: Systematic review; Level of evidence, 4., Methods: This review was performed through a PubMed, EMBASE, and Scopus query (from 1978 to June 2014) in the English literature using search terms "(equine-related OR equestrian-related OR horse-related OR equestrian OR equestrians) AND (injury OR injuries)." Only full-text studies reporting on orthopaedic injury patterns pertinent to equestrian sports in the United States (US) and the United Kingdom (UK) were included. Orthopaedic injuries were defined as those resulting in a fracture or dislocation. In all, 182 studies were excluded, leaving a total of 27 studies for evaluation. The studies included were analyzed for demographic and epidemiological data for orthopaedic injuries, including fractures and dislocations. Cranial and facial injuries were excluded from analysis., Results: The majority of those injured in the US were female (64.5%). The leading cause of injury in the US was falling from a horse. The use of protective equipment seemed to vary widely, with helmet use ranging from less than 6% up to 66.7%. In the UK, fractures were found to account for 17.4% of reported injures, compared with 33.6% of injuries in the US. The majority of fractures in US riders occurred in the upper extremities (50.7%)., Conclusion: This review helps characterize the epidemiology of equestrian injuries based on currently available data.