抄録
Considering the increasing incidence of snowboarding-related wrist trauma, clarification of the morphology of such injuries and the development of preventive approaches are necessary. We compared the injury morphology of skiing-related and snowboarding-related wrist trauma, and conducted a related literature review. Participants included 10,561 individuals who consulted the Ishiuchi Ski Clinic for skiing-related and snowboarding-related injuries between December 1996 and March 2014. As well as reviewing medical records and questionnaire surveys, we also analyzed videotaped skiing and snowboarding events to examine the statistics and injury morphology of wrist trauma. Over the study period, there were 3,703 patients with skiing-related trauma, including 89 （2.4％） with wrist trauma, and 6,858 patients with snowboarding-related trauma, including 1,123 （16.4％） with wrist trauma. These 1,123 patients included 925 （13.5％） with fractures and 148 （2.2％） with sprains. The most common skiing-related injuries were knee sprains, including medial collateral and anterior cruciate ligament injuries （23.3％）. However, the most common snowboarding-related injuries were wrist fractures, including distal radius fractures （13.5％）. Trauma was most commonly caused by falling during ski runs or snowboarding jumps. Videos of snowboarders’ postures during landing revealed that wrist fractures often occurred when their palms impacted the ground in front of the board. The increased wrist trauma associated with snowboarding compared to skiing could be attributed to the following reasons: （ⅰ） absence of ski poles and use of the snowboarding posture （sideways stance with both feet fixed on the same board）; （ⅱ） bindings not releasing during falls; and （ⅲ） sudden hand impact caused by “reverse edge” falls on moderate slopes （hands hitting the snow before the trunk）. These cause wrist dorsiflexion, predisposing to traumatic injuries, during falls and jumps.
