Morphometric Study of Suprascapular Notch in Indian Dry Scapulae with Specific Reference to the Incidence of Completely Ossified Superior Transverse Scapular Ligament

Kannan, Usha; Kannan, Narayanasamy Subbaraju; Anbalagan, J; Rao, Sudha

doi:10.7860/jcdr/2014/7836.4089

Cited by 28 publications

(35 citation statements)

References 31 publications

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“…In the present study the predominant type was the Type.III which correlates [ [4].In studies conducted on Indian population the prevalence of ossified STSL has been reported in the range of 10.57%-12.6% [12].In our study the prevalence of Type-VI was 12.79% and this value is within the range described by Polguj and close to that reported by Usha et al…”

Section: Resultssupporting

confidence: 88%

A Study on the Morphological Variations of the Suprascapular Notch in the Population of Eastern Delta Region of Tamil Nadu

Shanmugam¹,

Puthuraj²,

Jayamurugavel³

et al. 2017

IJAR

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Background:The etiology in 1-2% of patients with shoulder pain is suprascapular nerve entrapment. The suprascapular notch transmits the surascapular nerve and is bridged by the superior transverse scapular ligament. The size and shape of the suprascapular notch plays a significant role in the impingement of the suprascapular nerve in the notch. The variations in the morphology of suprascapular notch can be correlated to the individuals' predisposition to suprascapular nerve entrapment

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Section: Resultssupporting

confidence: 88%

A Study on the Morphological Variations of the Suprascapular Notch in the Population of Eastern Delta Region of Tamil Nadu

Shanmugam¹,

Puthuraj²,

Jayamurugavel³

et al. 2017

IJAR

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“…Various authors have reported the presence of such foramina in different population groups. (8)(9)(10)(11)(12)(13)(14)(15)(16)(17) The results of the present study suggest a higher incidence of ossified SSOs in North Indian populations (Table V). It has been suggested that variations in the appearance of an ossification centre for the coracoid and its associated bone formations may account for the different incidences of ossified SSOs across population groups.…”

Section: Discussionsupporting

confidence: 49%

“…Kannan et al (17) Present study 10.0 9.7 has been reported by Plancher et al; (21) the authors concluded that dynamic compression by the spinoglenoid ligament during repetitive shoulder abductions is an important but often overlooked factor in posterior shoulder pain. (21) Thus, an ossified ITSL could be a cause of SSN compression in an osseous spinoglenoid foramen, during overhead and repetitive shoulder movements (hence, SSN compression of this nature may be more prevalent in sportspersons).…”

Section: Indianmentioning

confidence: 56%

Unusual morphology of scapulae: incidence and dimensions of ossified ligaments and supraspinous bony tunnels for clinical consideration

Kharay

Sharma

Singh

2016

smedj

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INTRODUCTIONKnowledge of anatomical variations and anomalies along the course of the suprascapular nerve (SSN) is important in the treatment of SSN entrapment syndrome, and bony and brachial plexus injuries. This knowledge is also important for surgeons carrying out surgical interventions at the shoulder region.The SSN provides sensory innervation to the posterosuperior aspect of the shoulder and motor innervation to the supraspinatus and infraspinatus muscles. The SSN passes beneath the superior transverse scapular ligament (STSL) and inferior transverse scapular ligament (ITSL) at the fibro-osseous canals of the suprascapular notch and spinoglenoid notch, respectively. Therefore, the STSL and ITSL are potential sites of SSN compression. Complete ossification of the STSL with formation of bony foramina is the most recognised predisposing factor for compression at the suprascapular notch;(1) it is also a risk factor in surgical exploration for SSN decompression. In a recent histological and immunohistochemical study, it was found that all five cadaveric shoulders that had STSL ossification showed signs of neural degeneration in the nerve specimens.(3) However, a high incidence of ossified STSL does not proportionally correlate with the occurrence of SSN entrapment; (4,5) this could be due to the lack of focus on the influence that the body ridge shape (created by the ossified STSL) has on SSN entrapment. With this in mind, the present study was designed to analyse the variable morphological aspects of the ossified STSL, along with other ossified ligaments found in the scapula. We also document any rare findings of ossified ITSL and bony tunnels (i.e. the bony canal found between the suprascapular notch and spinoglenoid notch), as well as their dimensions, as these structures could potentially compress vascular and neural elements by reducing available space in the spinoglenoid notch. (6,7) In short, the present study explored the incidence of ossified ligaments and bony tunnels along the course of the SSN in dry human scapulae from a North Indian population. We also measured and recorded the dimensions of osseous ligaments and any rare bony tunnel and foramina at the suprascapular notch and spinoglenoid notch. As the existing data on ossified ligaments of dry human scapulae is limited, the data obtained in the present study would augment the current anatomical and morphological reference values. This would also aid in defining the anatomical risk factors for SSN entrapment and identifying the surgical hazards present during open and arthroscopic interventions in the suprascapular and spinoglenoid notch regions. METHODSThe present study was conducted on 268 dry human adult scapulae of unknown gender from a North Indian population. Among the 268 scapulae, 126 were right-sided and 142 were

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“…The incidence of suprascapular foramen in our study is comparable and in concordance with various ethnic population based studies. After going through available literature of study on completely ossified STSL, we found concordance of our incidence with Polguj M et al [16] (Poland) and Grey DJ et al [17] (America and Europeans) as shown in In our morphological study on 106 scapulae, we found most common type of SCN is type III (40.6%) and this observation is in accordance with previous cited studies by Jadhav S et al [9] (39.79%)and Agrawal D et al [21](45.0%).Second most common finding regarding our study is type I (26.4%) of suprascapular notch variation and this finding is similar with previous studies by Iqbal K et al [7] (22.5%), Kannan U et al [13] (20.0%) and Nagraj S et al [22](23%) . There is lack of standard classification regarding morphological study on SCN of scapula.…”

Section: Discussionsupporting

confidence: 93%

Morphological Variations of the Suprascapular Notch: Clinical Relevance in Suprascapular Neuropathy Vis-a-Vis Ossified Superior Transverse Scapular Ligament

D¹,

Nikumbh²

2017

IJAR

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Morphometric Study of Suprascapular Notch in Indian Dry Scapulae with Specific Reference to the Incidence of Completely Ossified Superior Transverse Scapular Ligament

Cited by 28 publications

References 31 publications

A Study on the Morphological Variations of the Suprascapular Notch in the Population of Eastern Delta Region of Tamil Nadu

A Study on the Morphological Variations of the Suprascapular Notch in the Population of Eastern Delta Region of Tamil Nadu

Unusual morphology of scapulae: incidence and dimensions of ossified ligaments and supraspinous bony tunnels for clinical consideration

Morphological Variations of the Suprascapular Notch: Clinical Relevance in Suprascapular Neuropathy Vis-a-Vis Ossified Superior Transverse Scapular Ligament

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