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  • Title: The sensory branch distribution of the suprascapular nerve: an anatomic study.
    Author: Vorster W, Lange CP, Briët RJ, Labuschagne BC, du Toit DF, Muller CJ, de Beer JF.
    Journal: J Shoulder Elbow Surg; 2008; 17(3):500-2. PubMed ID: 18262803.
    Abstract:
    The suprascapular nerve is responsible for most of the sensory innervation to the shoulder joint and is potentially at risk during surgery. In this study, 31 shoulders in 22 cadavers were dissected to investigate the sensory innervation of the shoulder joint by the suprascapular nerve, with special reference to its sensory branches. In 27 shoulders (87.1%), a small sensory branch was observed that splits off from the main stem of the suprascapular nerve proximal (48.2%), inferior (40.7%), or distal (11.1%) to the transverse scapular ligament. This percentage is considerably higher than has been previously found. In 74.2% of the shoulders, an acromial branch was also found, originating just proximal to the scapular neck, running to the infraspinatus tendon. These cadaveric results indicate that sensory branches to the shoulder joint are more common and numerous than previously described and therefore should be considered in shoulder surgery and nerve blocks to this area.
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