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Berryman Ogston, Jena Kay University of Minnesota 2005 해외박사(DDOD)
Background and purpose. Evidence that persons with multidirectional shoulder instability (MDI) present with abnormal kinematics of the shoulder is limited. Knowledge of these kinematic patterns is important for the clinician in identifying abnormal patterns and subsequently providing an optimal rehabilitation program for these individuals. The purpose of this investigation was to analyze glenohumeral and scapulothoracic kinematics in persons with MDI compared to age and gender matched asymptomatic controls. Subjects. Sixty-two subjects were recruited from an outpatient orthopedic clinic. Methods. Electromagnetic sensors evaluated 3-dimensional motion of the trunk, scapula and humerus during frontal and scapular plane elevation and external rotation at 90° of abduction. A repeated measures ANOVA evaluated positional motion during 4 phases of elevation (0-30°, 31-60°, 61-90° and 91-120°) and glenohumeral translations. Results. Persons with MDI demonstrated a significant decrease in scapular upward and external rotation with elevation of the shoulder. No significant glenohumeral translatory differences were seen between groups. Conclusion and discussion. Abnormal scapular kinematics are seen in the MDI shoulder suggesting the importance of incorporating scapular positioning and stability during rehabilitation. Additional study is warranted concerning the efficacy of various rehabilitation programs including both surgical and non-surgical interventions in this population.