[3][1] Two main classification systems exist; others are modified approaches of the same principle.

Introduced by Hrdicka 1942 and modified by Rengachary et al. 1979 There are six basic types of scapular notch: Introduced by Natsis et al. 2007 and modified by Polguj et al. 2011 There are five basic types of scapular notch: The second method of suprascapular notch typing yields more practical approach in clinical diagnosis of the suprascapular nerve entrapment.

Al-Redouan et al. 2020 predicted the morphological pattern of the suprascapular notch stenosis revealing higher incidence in the discrete notch (Type V according to the parametric measurements typing system).

There are two main suprascapular stenosis patterns:[5] The suprascapular nerve predictably passes through the suprascapular notch, so it is a good place for a local nerve block of the entire nerve.

[8][9] This article incorporates text in the public domain from page 204 of the 20th edition of Gray's Anatomy (1918)