Shingo Urayama

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BACKGROUND The incidence of reinjuries due to glenohumeral instability and the major risk factors for primary anterior shoulder dislocation in youth rugby players have been unclear. PURPOSE The purpose of this study was to investigate the incidence, mechanisms, and intrinsic risk factors of shoulder dislocation in elite high-school rugby union teams(More)
BACKGROUND Scapular dyskinesis is observed in subjects with pathologic conditions of the shoulder; however, there is limited information about the factors related to scapular dyskinesis among participants in rugby. The purpose of this study was to investigate the incidence, reliability, and relationships between scapular dyskinesis and variables related to(More)
BACKGROUND Characteristics of rugby tackles that lead to primary anterior shoulder dislocation remain unclear. PURPOSE To clarify the characteristics of tackling that lead to shoulder dislocation and to assess the correlation between the mechanism of injury and morphological damage of the glenoid. STUDY DESIGN Case series; Level of evidence, 4. (More)
BACKGROUND A stinger is a type of neurapraxia of the cervical roots or brachial plexus and represents a reversible peripheral nerve injury. The incidence of and major risk factors for stingers among young rugby players remain uninvestigated. PURPOSE To investigate the incidence, symptoms, and intrinsic risk factors for stingers in elite rugby union teams(More)
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