Variations in the origin and course of the suprascapular artery: case report and literature review

Singh, Rajani

doi:10.1590/1677-5449.008117

Cited by 11 publications

(8 citation statements)

References 12 publications

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“…In this case, we found an unusual origin from the 1st segment of axillary artery. This variation is also reported by Naidoo et al (2014) and Singh (2018) with the rate as 2 % (2/100) and 3.6 % (1/28) respectively. Besides, Pyrgakis et al (2013) reported 1.6 % (1/62) origin from the 3rd part of subclavian artery but no origin from the axillary artery.…”

Section: Discussionsupporting

confidence: 72%

A Rare Variation of Suprascapular Artery Originated from the Axillary Artery

Zhang

Zhuo

et al. 2019

Int. J. Morphol.

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The suprascapular artery (SSA) has been identified to be of clinical relevance to clavicular fracture, suprascapular neuropathy and surgical intervention of shoulder. Thus its origin and course have been intensively studied. In this case, we found a unilateral variation of the suprascapular artery, originating from the 1st segment of axillary artery, and sequentially penetrating the upper trunk of brachial plexus, passing through the suprascapular notch under the superior transverse scapular ligament. This case will be helpful to clinical management in cervical and shoulder region.

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Section: Discussionsupporting

confidence: 72%

A Rare Variation of Suprascapular Artery Originated from the Axillary Artery

Zhang

Zhuo

et al. 2019

Int. J. Morphol.

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“…Variant origins and courses of the SSA have been described. According to literature, the commonest variation is the direct origin of the SSA from the subclavian artery (10%) [22], while the origins from the internal thoracic artery (1-5.1%), from the costocervical trunk (1%), or from the dorsal scapular artery [10,19,22] are quite uncommon. The SSA origin from the AA, as in our case, is rather rare, with an incidence ranging between 1.6% [11] and 3.8% [19].…”

Section: Discussionmentioning

confidence: 99%

“…According to literature, the commonest variation is the direct origin of the SSA from the subclavian artery (10%) [22], while the origins from the internal thoracic artery (1-5.1%), from the costocervical trunk (1%), or from the dorsal scapular artery [10,19,22] are quite uncommon. The SSA origin from the AA, as in our case, is rather rare, with an incidence ranging between 1.6% [11] and 3.8% [19]. The SSA supplies the proximal 4/5 ths of the clavicle and it is the exclusive blood supply for the middle one third of the clavicle [6].…”

Section: Discussionmentioning

confidence: 99%

An unusual case of asymmetrical combined variations of the subclavian and axillary artery with clinical significance

et al. 2019

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In a Greek Caucasian male cadaver, a combination of the following arterial variations were observed: an aberrant right subclavian artery originating as a last branch of the aortic arch and coursed posterior to the oesophagus, a right non-recurrent laryngeal nerve, an atypical origin of the left suprascapular artery from the axillary artery, an unusual emersion of the lateral thoracic artery from the subscapular artery and a separate origin of the left thoracodorsal artery from the axillary artery. According to the available literature the corresponding incidences of the referred variants are: 0.7% for the aberrant right subclavian artery, 1.6-3.8% for the origin of the suprascapular artery from the axillary artery, 3% for the origin of the left thoracodorsal artery from the axillary artery and 30% for the origin of the lateral thoracic artery from the subscapular artery. Such unusual coexistence of arterial variations may developmentally be explained and has important clinical significance.

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“…Less frequently, it may originate from the internal thoracic artery (1-1.5%), the costocervical trunk (1%), or the dorsal scapular artery. 11 It runs laterally and anteriorly to the anterior scalene muscle, crosses the proximal brachial plexus and the subclavian artery, and then travels parallel with the clavicle. After passing through the inferior belly of the omohyoid muscle, it reaches the superior margin of the scapula and enters the supraspinous fossa passing above the STSL to supply the supraspinatus muscle.…”

Section: Introductionmentioning

confidence: 99%

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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Variations in the origin and course of the suprascapular artery: case report and literature review

Cited by 11 publications

References 12 publications

A Rare Variation of Suprascapular Artery Originated from the Axillary Artery

A Rare Variation of Suprascapular Artery Originated from the Axillary Artery

An unusual case of asymmetrical combined variations of the subclavian and axillary artery with clinical significance

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

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