抄録
Purpose: The purpose of this study was to clarify the scapular deviation at rest in throwing athletes. Materials and methods: There were nineteen baseball players with a scapular deviation (Group 1) out of 133 patients with a sports injury of the shoulder. They had pictures of their backs with some markings taken while sitting on a chair. The pictures were scanned by computer and the position of the inferior angle of the scapula, the distance from the spine to the medial margin of the scapula and the upward rotation angle of the scapula was measured.20 patients with another shoulder injury (Group 2) and 20 men without any shoulder problems (Group 3) were measured similarly.
Results: Group 1: Their mean age was 19.6 years. They had anterior shoulder pain when throwing for months. They had could deviate their scapulas up and laterally on their own. They all had a positive impingement sign. Their scapular deviations recovered as their pain decreased.9 were diagnosed as having impingement syndrome,6 subacromial bursitis and 4 tendinitis of the cuff. The measurements of the scapula were as follows: In Groupl the painful scapula had deviated a mean of 1.5cm up,1.6cm laterally and the upward rotation angle was less than4.3°. Groups 2 and 3 had no lateralizations.53%of baseball players with shoulder injuries showed a scapular deviation.
Conclusion: As a scapular deviation was observed in over half of the baseball players with a shoulder injury, we emphasize that a scapular deviation is a significant sign of a throwing injury of the shoulder.
