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A Morphometric Analysis of Suprascapular Notch & its Clinical Significance in East Godavari Region

Arjilli Vamsy, Lecture, Department of Anatomy, G.S.L Medical College, Lakshmi Puram, Rajahmundry, East Godaveri, Andhra Pradesh 533296, India. , Anupam Khalkho1 , Arjilli Vamsy2

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Indian Journal of Anatomy 7(2):p 138-143, . | DOI: http://dx.doi.org/10.21088/ija.2320.0022.7218.5
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Abstract

The suprascapular notch is present along the superior border of the scapula and is converted into a foramen by the ossification of the superior transverse scapular ligament which joins the two corners of the notch. This particular notch allows the passage of the suprascapular nerve to the suprascapular fossa and is responsible for the motor nerve supply to the surrounding muscles. There are variations in the shape of the notche. Just below the superior transverse scapular ligament passes the anterior coracoscapular ligament which also ossifies in some cases. The ossification of these two ligament leads to narrowing of the suprascapular notch and coverting it to a foramen. This is one of the important cause of the suprascapular nerve entrapement. The knowledge of the morphometric details of the suprascapular notch is very promising in understanding the cause of the suprascapular nerve entrapement & its subsequent treatment. The present study was conducted using 69 dried scapula in the GSL Medical College Rajahmundry. Various moprphometric parameters of the suprascapular notch were measured & grouped into 6 types based on Rengachary ‘s studies. In this study type III is the commonest (36%) followed by type II (35%), type I (10%), type IV (7%) and type V (7%). Only 5% of the scapulae presented with the complete ossification of the suprascapular ligament converting the notch into foramen. The knowledge of the variation in the occurrence of the suprascapular notch and their association with the cause of the suprascapular nerve entrapement has drawn the attention of many surgeons enabling them for the proper diagnosis and its treatment.

 

 

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  • Arjilli Vamsy, Lecture, Department of Anatomy, G.S.L Medical College, Lakshmi Puram, Rajahmundry, East Godaveri, Andhra Pradesh 533296, India.
    ,
  • Anupam Khalkho1
    ,
  • Arjilli Vamsy2
    ,
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DOI: http://dx.doi.org/10.21088/ija.2320.0022.7218.5
Keywords Superior Transverse Scapular Ligament; Anterior Coracoscapular Ligament; Suprascapular Notch; Suprascapular Nerve Entrapement. 

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