suprascapular notch (or scapular notch) is a notch in the superior border of the scapula, just medial to the base of the coracoid process.
This notch is converted into a
foramen by the superior transverse scapular ligament, and serves for the passage of the suprascapular nerve (but not its corresponding artery); sometimes the ligament is ossified. The suprascapular artery travels superiorly to the superior transverse ligament. [1 ]
Rengachary et al. 1979, there are six basic types of scapular notch: [2 ]
Type I (8%): Notch is absent. The superior border forms a wide depression from the medial angle to the coracoid process.
Type II (31%): Notch is a blunted V-shape occupying the middle third of the superior border.
Type III (48%): Notch is U-shaped with nearly parallel margins.
Type IV (3%): Notch is V-shaped and very small. A shallow groove is frequently formed for the suprascapular nerve adjacent to the notch.
Type V (6%): Notch is minimal and U-shaped with a partially ossified ligament.
Type VI (4%): Notch is a foramen as the ligament is completely ossified.
Additional images [ edit ]
Left scapula. Suprascapular notch shown in red.
Animation. Suprascapular notch shown in red.
Costal surface of left scapula. Suprascapular notch labbeled at top center.
This article incorporates text from a public domain edition of Gray's Anatomy .
See also [ edit ]
References [ edit ]
Habermeyer, Peter; Magosch, Petra; Lichtenberg, Sven (2006). Classifications and Scores of the Shoulder. Springer. ISBN 978-3-540-24350-2. LCCN 2005938553.
Rengachary, S. S.; Burr, D.; Lucas, S.; Hassanein, K. M.; Mohn, M. P., Matzke, H. (1979). "Suprascapular entrapment neuropathy: a clinical, anatomical, and comparative study". Neurosurgery 5 (4): 447–451. PMID 534049.
Pectoral girdle, clavicle