Osseous Adaptation and Range of Motion at the Glenohumeral Joint in Professional Baseball Pitchers

摘要: The throwing shoulder in pitchers frequently exhibits a paradox of glenohumeral joint motion, which excessive external rotation is present at the expense decreased internal rotation. object this study was to determine role humeral head retroversion relation increased Glenohumeral range motion and laxity along with glenoid version dominant versus nondominant shoulders were studied 25 professional nonthrowing subjects. Each subject underwent computed tomography scan bilateral version. group demonstrated significant increase retroversion, 90 degrees, scapular plane. Internal shoulder. Total anterior laxity, posterior found be equal bilaterally. no difference degrees or plane between shoulders, total laxity. A comparison two groups indicated that both significantly greater group.