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KMID : 0377520170420010025
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Chung-Ang Journal of Medicine
2017 Volume.42 No. 1 p.25 ~ p.30
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Morphological Study of the Subdeltoid Bursa and its Innerrvation
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Seo Chang-Min
Jeon An-Na
Jeong Yoon-Hee
Kim Kyung-Yong
Han Seung-Ho
Lee Won-Bok
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Abstract
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The subdeltoid bursa is one of the main structures that cause shoulder pain. Previous studies have discussed the locations and innervation of sensory nerve of the subacromial bursa at large, and there was no detailed study focusing on the subdeltoid bursa. The aim of this study was to accurately identify the distribution of sensory nerve branches running to subdeltoid bursa with mesoscopic dissection and the boundaries after injecting gelatin into the bursa. Fifteen shoulders of 11 Korean soft cadavers were dissected (average age 65, age ranged 43~88 years). The most prominent point of greater tubercle of the humerus (GT) were used reference point. The horizontal line passing through GT was used as x-axis and the vertical line passing through the GT was used as y-axis. The average anterior, posterior, superior, and inferior were 1.9±0.6, 2.4±1.3, 2.1±0.7, and 3.2±1.5 cm from the GT, respectively. The most common shape of subdeltoid bursa was oval shape. In 15 shoulders, the anterior branch of the axillary nerve distributed to subdeltoid bursa with running posteriorly. The muscular branch of anterior and middle parts of the deltoid distributed to the branch of nerve that into the subdeltoid bursa. Most branches of axillary nerve were distributed in the posterolateral area.
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KEYWORD
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Subdeltoid bursa, Axillary nerve, Shoulder pain
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