A quantitative study of the arrangement of the suprascapular nerve and vessels in the suprascapular notch region: new findings based on parametric analysis

Jezierski, Hubert; Wysiadecki, Grzegorz; Sibiński, Marcin; Borowski, Andrzej; Podgórski, Michał; Topol, Mirosław; Polguj, Michał

doi:10.5603/fm.a2016.0018

Cited by 4 publications

(3 citation statements)

References 20 publications

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“…1,8,14 It mainly affects males and it occurs in patients younger than 35 years of age. 7,14 Embryologically, all main vessels are derived from a primary plexus of small vessels. During this phase, some vessels enlarge and develop definite channels, while other vessels may regress.…”

Section: Discussionmentioning

confidence: 99%

“…However, the locations of the corresponding artery and vein vary. 7 There have been two classification systems describing the arrangement of the suprascapular triad at the area of notch by Yang et al in 2012 and Polguj et al in 2013. 4,6 Yang et al distinguished three types based on an examination of 103 shoulders.…”

Section: Discussionmentioning

confidence: 99%

“…However, the courses of the associated suprascapular vessels are subject to significant variation. [7][8][9] The suprascapular vein starts in the infraspinatus fossa, after passing through the spinoglenoid notch enters the supraspinous fossa, and following ascends to the SN. It most commonly crosses the SN running under the STSL along with the SSN and then travels with the suprascapular artery and finally empties into the external jugular vein.…”

Section: Introductionmentioning

confidence: 99%

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Morphometry and Contents of the Suprascapular Notch with Potential Clinical Implications: Α Cadaveric Study

Tsikouris

Antonopoulos

Vasdeki

et al. 2021

J Brachial Plex Peripher Nerve Inj

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Background The suprascapular notch (SN) represents the point along the route of the suprascapular nerve (SSN) with the greatest potential risk for injury and compression. Thus, factors reducing the area of the notch have been postulated for suprascapular neuropathy development. Methods Thirty-one fresh-frozen shoulders were dissected. The contents of the SN were described according to four types as classified by Polguj et al and the middle-transverse diameter of the notch was measured. Also, the presence of an ossified superior transverse scapular ligament (STSL) was identified. Results The ligament was partially ossified in 8 specimens (25.8%), fully ossified in 6 (19.35%), and not ossified in the remaining 17 (54.85%). The mean middle-transverse diameter of the SN was 9.06 mm (standard deviation [SD] = 3.45). The corresponding for type-I notches was 8.64 mm (SD = 3.34), 8.86 mm (SD = 3.12) was for type-II, and 14.5 mm (SD = 1.02) was for type III. Middle-transverse diameter was shorter when an ossified ligament was present (mean = 5.10 mm, SD = 0.88 mm), comparing with a partially ossified ligament (mean =7.67 mm, SD = 2.24 mm) and a nonossified one (mean = 11.12 mm, SD = 2.92 mm). No statistically significant evidence was found that the middle-transverse diameter depends on the number of the elements, passing below the STSL. Conclusion Our results suggest that SSN compression could be more likely to occur when both suprascapular vessels pass through the notch. Compression of the nerve may also occur when an ossified transverse scapular ligament is present, resulting to significant reduction of the notch's area.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Morphometry and Contents of the Suprascapular Notch with Potential Clinical Implications: Α Cadaveric Study

Tsikouris

Antonopoulos

Vasdeki

et al. 2021

J Brachial Plex Peripher Nerve Inj

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Classification of the superior angle of the scapula and its correlation with the suprascapular notch: a study on 303 scapulas

et al. 2018

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An unusual combination of a bilateral aberrant suprascapular artery with neurovascular structures variants

et al. 2023

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Purpose The report describes a bilateral suprascapular artery (SPSA) of atypical origin in coexistence with neurovascular aberrant structures. Methods The variants were identified in a 91-year-old formalin-embalmed male cadaver, derived from a body donation program after a signed informed consent. Results The left-sided SPSA emanated from the 1st part of the axillary artery, coursed between the brachial plexus lateral and medial cords, accompanied by the suprascapular nerve, and passed below the superior transverse scapular ligament. Ipsilateral coexisted variants were the lateral thoracic artery multiplication, the subscapular trunk formation, and the musculocutaneous nerve duplication. In the right supraclavicular area, a SPSA duplication was identified. The main artery emanated from the thyrocervical trunk in common with the transverse cervical artery and the accessory SPSA emanated from the dorsal scapular artery. Both SPSAs coursed over the superior transverse scapular ligament, while the suprascapular nerve ran below the ligament. Conclusions The current study reported a bilateral aberrant SPSA, originating from the AA 1st part (left side) and from the dorsal scapular artery (right side), which coexisted with adjacent neurovascular structures’ variants. The left SPSA atypically coursed below the superior transverse scapular ligament. Such an unusual combination of variations, present bilaterally in the current study, may be challenging for radiologists and surgeons.

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A quantitative study of the arrangement of the suprascapular nerve and vessels in the suprascapular notch region: new findings based on parametric analysis

Abstract: Background: When closed by the superior transverse scapular ligament (STSL), the suprascapular notch (SSN) creates an osseo-fibrous tunnel which acts as a pathway for the suprascapular nerve (SN). Anatomical variations are common in this region (Folia Morphol 2016; 75, 4: 454-459)

Cited by 4 publications

References 20 publications

Morphometry and Contents of the Suprascapular Notch with Potential Clinical Implications: Α Cadaveric Study

Morphometry and Contents of the Suprascapular Notch with Potential Clinical Implications: Α Cadaveric Study

Classification of the superior angle of the scapula and its correlation with the suprascapular notch: a study on 303 scapulas

An unusual combination of a bilateral aberrant suprascapular artery with neurovascular structures variants

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