Complete absence of the suprascapular notch in a Nigerian scapula: A possible cause of suprascapular nerve entrapment

Anatomical study of the suprascapular notch: quantitative analysis and clinical considerations for suprascapular nerve entrapment

“…This was different from that seen in scapulae with SSNs that were located at the junction of medial two-thirds and the lateral third, just medial to the base of the coracoid process. The number of type I SSNs in our study of Indian scapulae is greater than that reported in studies of Nigerian (16) and Chinese (17) populations.…”

Morphology of suprascapular notch in medieval skeletons from Bulgaria

“…The complete absence of SSN has been supposed to be a predisposing factor for suprascapular nerve entrapment syndrome, because of the possibility of compression of the suprascapular nerve by the superior transverse scapular ligament on the superior border of the scapula [21]. Our results show absence of the notch in 15.7%, which is a medial value in relation to the results of other authors -2.12% [32], 5% [33], 7.65% [14], 8.3% [19], 18% [34], 22.5% [13] and 28% [37].…”

“…Avery et al [4] and Polguj et al [26] considered the ossification of anterior coracoscapular ligament, which causes a reduction in the height of the suprascapular foramen, also as a possible aetiologic factor in suprascapular nerve entrapment. According to Ofusori et al [21], the complete absence of the SSN could be considered as a possible cause of suprascapular nerve entrapment as well.…”

Morphological study of lumbrical muscles in human cadaveric hands

“…The size and shape of the SSN may be a factor in suprascapular nerve entrapment because narrow SSNs have been found in patients with this syndrome. 14,15,16,17 .…”