Abstract：
UNASSIGNED: Lateral ankle sprains are one of the most common injuries in indoor and court sports. Self-reports and case studies have indicated that these injuries occur via both contact and noncontact injury mechanisms typically because of excessive inversion in combination with plantarflexion and adduction of the foot. Video-based documentation of the injury mechanism exists, but the number of cases reported in the literature is limited.
UNASSIGNED: To retrieve and systematically analyze a large number of video-recorded lateral ankle injuries from indoor and court sports, as well as describe the injury mechanism, injury motion, and injury pattern across different sports.
UNASSIGNED: Cross-sectional study; Level of evidence, 3.
UNASSIGNED: A total of 445 unique video-recorded lateral ankle sprain injuries were retrieved from indoor and court sports of broadcasted levels of competition. The videos were independently analyzed by 2 different reviewers. Outcomes included classification of the injury mechanism according to the International Olympic Committee consensus guidelines, primary and secondary motions of ankle joint distortion, and documentation of the fixation point (fulcrum) around which the foot rotates.
UNASSIGNED: Overall, 298 (67%) injuries were direct contact, 113 (25%) were noncontact, and 32 (7%) were indirect contact incidents. Direct contact injuries were especially prevalent in basketball (76%), handball (80%), and volleyball (85%), while noncontact injuries dominated in tennis and badminton (96% vs 95% across both). Inversion (65%) and internal rotation (33%) were the primary distortion motions, with the lateral forefoot (53%) and lateral midfoot (40%) serving as the main fulcrums. Landing on another player\'s foot was the leading cause of injury (n = 246; 55%), primarily characterized by inversion (79%) around a midfoot fulcrum (54%). The noncontact and indirect landings on floor (n = 144; 33%) were primarily characterized by a distortion around a forefoot fulcrum (69%).
UNASSIGNED: Two of 3 ankle sprains from online video platforms were direct contact injuries, with most involving landing on another player\'s foot. The distortion motion seems to be related to the injury mechanism and the fixation point between the foot and the floor. The injury mechanisms varied greatly between sports, and future studies should clearly differentiate and investigate the specific injury mechanisms.
UNASSIGNED: To retrieve and systematically analyze a large number of video-recorded lateral ankle injuries from indoor and court sports, as well as describe the injury mechanism, injury motion, and injury pattern across different sports.
UNASSIGNED: Cross-sectional study; Level of evidence, 3.
UNASSIGNED: A total of 445 unique video-recorded lateral ankle sprain injuries were retrieved from indoor and court sports of broadcasted levels of competition. The videos were independently analyzed by 2 different reviewers. Outcomes included classification of the injury mechanism according to the International Olympic Committee consensus guidelines, primary and secondary motions of ankle joint distortion, and documentation of the fixation point (fulcrum) around which the foot rotates.
UNASSIGNED: Overall, 298 (67%) injuries were direct contact, 113 (25%) were noncontact, and 32 (7%) were indirect contact incidents. Direct contact injuries were especially prevalent in basketball (76%), handball (80%), and volleyball (85%), while noncontact injuries dominated in tennis and badminton (96% vs 95% across both). Inversion (65%) and internal rotation (33%) were the primary distortion motions, with the lateral forefoot (53%) and lateral midfoot (40%) serving as the main fulcrums. Landing on another player\'s foot was the leading cause of injury (n = 246; 55%), primarily characterized by inversion (79%) around a midfoot fulcrum (54%). The noncontact and indirect landings on floor (n = 144; 33%) were primarily characterized by a distortion around a forefoot fulcrum (69%).
UNASSIGNED: Two of 3 ankle sprains from online video platforms were direct contact injuries, with most involving landing on another player\'s foot. The distortion motion seems to be related to the injury mechanism and the fixation point between the foot and the floor. The injury mechanisms varied greatly between sports, and future studies should clearly differentiate and investigate the specific injury mechanisms.
摘要：
■外侧踝关节扭伤是室内和球场运动中最常见的伤害之一。自我报告和案例研究表明，这些损伤是通过接触和非接触损伤机制发生的，这通常是由于过度倒置以及脚底弯曲和内收。存在基于视频的损伤机制文档，但文献报道的病例数量有限.
■为了检索和系统分析室内和球场运动中大量视频记录的外侧踝关节损伤，以及描述损伤机制，损伤运动,以及不同运动的伤害模式。
■横断面研究；证据水平，3.
■从广播比赛的室内和法院运动中总共检索到445个独特的视频记录的外侧踝关节扭伤。视频由2个不同的评论者独立分析。结果包括根据国际奥委会共识准则对损伤机制进行分类，踝关节变形的主要和次要运动，并记录了脚旋转的固定点（支点）。
■总的来说，298人（67%）受伤是直接接触，113(25%)是非接触的，32例(7%)为间接接触事件.直接接触伤害在篮球中尤其普遍(76%)，手球（80%），和排球（85%），而非接触性损伤在网球和羽毛球中占主导地位(96%vs95%)。反转(65%)和内旋(33%)是主要的畸变运动,外侧前足（53％）和外侧中足（40％）作为主要支点。落在另一个球员的脚是受伤的主要原因（n=246;55％），主要特征是中足支点（54％）周围倒置（79％）。地板上的非接触和间接着陆（n=144；33％）的主要特征是前脚支点周围的变形（69％）。
■来自在线视频平台的3例踝关节扭伤中有2例是直接接触伤，与大多数涉及降落在另一个球员的脚。扭曲运动似乎与受伤机制以及脚与地板之间的固定点有关。运动之间的损伤机制差异很大，未来的研究应明确区分和调查具体的损伤机制。
■为了检索和系统分析室内和球场运动中大量视频记录的外侧踝关节损伤，以及描述损伤机制，损伤运动,以及不同运动的伤害模式。
■横断面研究；证据水平，3.
■从广播比赛的室内和法院运动中总共检索到445个独特的视频记录的外侧踝关节扭伤。视频由2个不同的评论者独立分析。结果包括根据国际奥委会共识准则对损伤机制进行分类，踝关节变形的主要和次要运动，并记录了脚旋转的固定点（支点）。
■总的来说，298人（67%）受伤是直接接触，113(25%)是非接触的，32例(7%)为间接接触事件.直接接触伤害在篮球中尤其普遍(76%)，手球（80%），和排球（85%），而非接触性损伤在网球和羽毛球中占主导地位(96%vs95%)。反转(65%)和内旋(33%)是主要的畸变运动,外侧前足（53％）和外侧中足（40％）作为主要支点。落在另一个球员的脚是受伤的主要原因（n=246;55％），主要特征是中足支点（54％）周围倒置（79％）。地板上的非接触和间接着陆（n=144；33％）的主要特征是前脚支点周围的变形（69％）。
■来自在线视频平台的3例踝关节扭伤中有2例是直接接触伤，与大多数涉及降落在另一个球员的脚。扭曲运动似乎与受伤机制以及脚与地板之间的固定点有关。运动之间的损伤机制差异很大，未来的研究应明确区分和调查具体的损伤机制。
