上腕三頭筋長頭腱起始部の解剖学的研究

概要

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We evaluated the scapular insertion of the long head of the triceps tendon at the edge of the glenoid In this study, 16 cadaveric right shoulders (male 11 cases, female 5 cases) were evaluated for the macroscopic investigation. The mean age of the cases was 83.3 years old ranging from 57 to 102 years old. For the preparation, the long head of the triceps tendon was carefully dissected and the site, the size, and the shape of the insertion were recorded. The insertion site of the long head of the triceps was variable. It was located at 6:30 in 7 shoulders, at 6:00 in 6 shoulders, and at 5:30 or 7:00 or 7:30 in one shoulder. The mean length and width of the insertion were 20.3 (13-29) mm and 10.8 (5-15) mm, respectively. The distance of the insertion from the edge of the glenoid was 1.5 (0-6) mm. The shape of the insertion was classified into three types, triangle in 6 cases, spindle in 7 cases and oval in one case. The site and the shape of the scapular insertion of the long head of the triceps were variable. The variety of the insertion may have a relationship to the occurrence of Bennets lesion in throwing athletes.
2010-08-04