• J Shoulder Elbow Surg · May 2008

    The sensory branch distribution of the suprascapular nerve: an anatomic study.

    • Willie Vorster, Christopher P E Lange, Robert J P Briët, Barend C J Labuschagne, Don F du Toit, Christo J F Muller, and Joe F de Beer.
    • Department of Anatomy and Histology, Faculty of Health Sciences, University of Stellenbosch, Tygerberg, South Africa. wvorster@sun.ac.za
    • J Shoulder Elbow Surg. 2008 May 1;17(3):500-2.

    AbstractThe 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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