Proposal for classification of the suprascapular notch: A study on 423 dried scapulas

Natsis, Konstantinos; Totlis, Trifon; Tsikaras, Prokopios; Appell, H.-J.; Skandalakis, Panajiotis N.; Koebke, Jürgen

doi:10.1002/ca.20318

Cited by 127 publications

(151 citation statements)

References 22 publications

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“…FIG-3 shows Type I-Wide depression in the superior border of the scapula Type II-Wide blunted V shape, Type IIISymmetric U shape Type IV-Very small V shape, often with a shallow groove for the suprascapular nerve Type V-Partial ossified medial portion of the suprascapular ligament Type VI-Completely ossified suprascapular ligament forming foramen. In the present study, Type III was more common which was similar to the observation of other studies, followed by type II which was similar to the findings of Rengachary et al, [6] and Natsis et al [13] . It differed from the studies of Sinkeet et al [14] and Sangam et al [17] which showed type I as most prevalent (Table 4).…”

Section: Resultssupporting

confidence: 92%

“…Therefore various studies have been done on suprascapular notch variations in different populations. Rengachary et al, [6] Ticker et al, [11], Bayramoglu et al, [12] Natsis et al, [13] Sinkeet [14] Wang [15] and Polguj [16]. Depending on the shape of suprascapular notch and the degree of ossification, Rengachary et al, [6] classified SSN into six types .…”

Section: Resultsmentioning

confidence: 99%

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A Morphometric Study of Suprascapular Notch and Its Safe Zone

Philip¹,

K.R²

2017

IJAR

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

A Morphometric Study of Suprascapular Notch and Its Safe Zone

Philip¹,

K.R²

2017

IJAR

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“…This approach is independent of the visualization of the suprascapular notch, as the notch is absent in 8% of the population. 14 In conclusion, we present a case report and the results of cadaver dissections, which suggest a reinterpretation of the ultrasound image obtained and described in the literature. By positioning the ultrasound probe in the coronal plane over the suprascapular fossa with a slight anterior tilt, the SSN can be visualized on the floor of the scapular spine between the scapular notch and the spinoglenoid notch.…”

Section: Discussionsupporting

confidence: 62%

Bloc du nerf suprascapulaire par échoguidage: corrélation avec des résultats fluoroscopiques et cadavériques

Peng

Wiley

Liang

et al. 2010

Can J Anesth/J Can Anesth

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Purpose Previous work on the ultrasound-guided injection technique and the sonoanatomy of the suprascapular region relevant to the suprascapular nerve (SSN) block suggested that the ultrasound scan showed the presence of the suprascapular notch and transverse ligament. The intended target of the ultrasound-guided injection was the notch. The objective of this case report and the subsequent cadaver dissection findings is to reassess the interpretation of the ultrasound images when locating structures for SSN block. Clinical features A 45-yr-old man with chronic shoulder pain received an ultrasound-guided SSN block using the suprascapular notch as the intended target. The position of the needle was verified by fluoroscopy, which showed the tip of the needle well outside the suprascapular notch. Similar ultrasound-guided SSN blocks were performed in two cadavers. Dissections were performed which showed that the needle tips were not at the suprascapular notch but, more accurately, were close to the SSN but at the floor of the suprascapular fossa between the suprascapular and spinoglenoid notch. Conclusion Our fluoroscopic and cadaver dissection findings both suggest that the ultrasound image of the SSN block shown by the well-described technique is actually targeting the nerve on the floor of the suprascapular spine between the suprascapular and spinoglenoid notches rather than the suprascapular notch itself. The structure previously identified as the transverse ligament is actually the fascia layer of the supraspinatus muscle.

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“…The classification given by Natsis et al seems to be simple and includes all the anatomical variations based on the vertical and transverse diameters of the SSN. 5 The classification by Iqbal et al also provides an easy method of distinction of SSN based on its shape (U, V, and J) without involving any measurements. 4 The results of the present study show that the most common type of SSN is type II-a notch that is longest in its transverse diameter (52%) and the least common is Type V where both notch and foramen present are present (1%).…”

Section: Discussionmentioning

confidence: 99%

“…3 SSN has been classified by various workers in different populations on the basis of parameters such as vertical length of the notch, transverse diameter of the notch and shape of the notch. 4,5,6,7,8 Knowing the anatomical variations in detail is better for understanding of location and source of the entrapment syndrome.However, the literature focusing on SSN and SN IJBAR (2013) 04 (01) www.ssjournals.com…”

Section: Introductionmentioning

confidence: 99%

Morphology and Morphometric Analysis of Suprascapular Notch

Sutaria

Nayak

Patel

et al. 2013

Int J of Biomed & Adv Res

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Abstract:

The morphology of the suprascapular notch (SSN) has been associated with suprascapular entrapment neuropathy, and injury to the suprascapular nerve in arthroscopic shoulder procedures. This study aimed to describe the morphology and morphometry of the suprascapular notch in dry scapulae. The present study was done in 314 dry scapulae obtained from B. J. Medical College, Ahmedabad. In the present study the suprascapular notch is classified on the basis of two classifications. According to one classification, SSN was classified into five types, type I without a discrete notch; type II a notch that was longest in transverse diameter; type III a notch that was longest in vertical diameter; type IV a bony foramen; type V a notch and a bony foramen. Based on gross appearance, SSN was classified as ‘U’ shaped, ‘V’ shaped, ‘J’ shaped, absent notch and indentation instead of a notch. The complete and partial ossification of the superior transverse scapular ligament was also noted. According to first classification following observations were made in the present study: type I-29%; type II-52%; type III-16%; type IV-2%; type V-1%. According to another classification, following observations were made: ‘U’ shaped notch 38%, ‘V’ shaped notch 7%, ‘J’ shaped notch 22%, absent notch 18%, and indentation instead of a notch 12%. The complete ossification was seen in 3% and partial ossification of the superior transverse scapular ligament in 2% of cases. This anatomic information is important in the management of entrapment neuropathy or interventional procedure of the SSN.

Keywords: morphology, morphometry, suprascapular notch

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Proposal for classification of the suprascapular notch: A study on 423 dried scapulas

Cited by 127 publications

References 22 publications

A Morphometric Study of Suprascapular Notch and Its Safe Zone

A Morphometric Study of Suprascapular Notch and Its Safe Zone

Bloc du nerf suprascapulaire par échoguidage: corrélation avec des résultats fluoroscopiques et cadavériques

Morphology and Morphometric Analysis of Suprascapular Notch

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