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KMID : 1237720230560040482
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Anatomy & Cell Biology
2023 Volume.56 No. 4 p.482 ~ p.493
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Morphological types and morphometrical measurements of the suprascapular notch in both dry bones and human cadavers: anatomical study to improve the outcomes of the diagnostic and interventional procedures in the shoulder region
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Ashraf Youssef Nasr
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Abstract
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Understanding the anatomy of suprascapular area helps the clinicians and surgeons in management of anydisability at the shoulder region. This work aimed to clear the different morphological and morphometrical types ofsuprascapular notch (SSN). Unknown 120 dry human scapulae of both sides and 60 formalin-embalmed cadaveric upperlimbs (40 males and 20 females) were used in the present study. Three main morphological forms of SSN were reported: J, U,and V-shaped. J-shaped notch showed the highest incidence followed by U-shaped then V-shaped one. Morphometrically,type (III) notch was the most prevalent in both dry bones and cadavers, while the incidence of type (II) was the lowest form.
Also, the measurements of superior transverse diameter, middle transverse diameter and vertical dimension of the differenttypes of the notch showed no side or sex significant difference. The suprascapular foramen with ossified superior transversescapular ligament (STSL) was seen in 5.8% of dry bones and 10% of cadaveric specimens. Fan and band-shaped ossifiedtransverse scapular ligaments were reported. Absence of SSN was seen in 10.8% of dry bones, 7.5% of male and 10% of femalespecimens with left side predominance. V-shaped, absence, and ossified STSL were considered as predisposing factors ofsuprascapular nerve entrapment syndrome. Knowledge of the morphology and morphometric parameters of SSN is of greatclinical significance for anatomists, radiologists, physiotherapists, orthopedics and neurosurgeons to perform good diagnosisand best planning for surgical or arthroscopic interventions within the shoulder region.
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KEYWORD
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Scapular, Notch, Cadaver, Morphology, Morphometry
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