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棒球肘是指打棒球而致肘关节疾患的总称。1947年Bennett 最早报导投球手的肘关节障碍:鹰咀窝游离体、喙突及肱骨内上髁骨软骨炎。1960年Brogdon 等将青少年由于打棒球引起的肘关节疾患称“青少年棒球肘”,并报告三例,表现为肱骨内上髁骺分离伴节裂。进行投球时,肘关节是由最初前臂屈曲位内或伴外旋后完全变为伸展位。于加速期强制其外翻位,减速期则强制极度外翻。这样反复给予肘关节的胁迫力是形成棒球肘的原因。Slocums 叙述的发生机理:
Baseball elbow refers to the general term for elbow joint disorders caused by playing baseball. Bennett first reported in 1947 elbow elbow obstacles: Eagle’s nest free body, coracoid and humerus medial condylar osteochondritis. In 1960, Brogdon et al. Named “elder baseball elbow” for adolescent elbow joint disease caused by playing baseball and reported three cases, which showed separation of the epicondyle of the humerus with the fissure. When pitching the ball, the elbow completely changes into an extension position from the initial forearm flexion position or from the external rotation. Force its eversion during acceleration, while deceleration is mandatory extreme valgus. This repeated give elbow joint force is the reason for the formation of baseball elbow. Slocums describes the mechanism of occurrence: