International Journal of Anatomy and Research

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Type of Article : Orginal Research

Year: 2015 | Volume 3 | Issue 3 | Page No. 1306-1311

Date of Publication: 31-08-2015

DOI: http://dx.doi.org/10.16965/ijar.2015.217


SUPRASCAPULAR NOTCH: A MORPHOMETRIC AND MORPHOLOGIC STUDY IN NORTH INDIAN POPULATION

Ritika Sharma *1, Rajan Sharma 2, Rajan Kumar Singla 3, Jagdev Singh Kullar 4, Tripta Sharma 5.

*1 Senior Resident, Department of Anatomy, Government Medical College, Amritsar, Punjab, India.
2 Assistant Professor, department of Orthopaedics, Sri Guru Ramdas Institute of Medical Sciences and Research, Vallah, Sri Amritsar, Punjab, India.
3 Additional Professor, Department of Anatomy, Government Medical College, Amritsar, Punjab, India.
4 Associate Professor, Department of Anatomy, Government Medical College, Amritsar, Punjab, India.
5 Professor and Head, Department of Anatomy, Punjab Institute of Medical Sciences, Jalandhar, Punjab, India.

Address: Dr. Ritika Sharma, Senior Resident, Department of Anatomy, Government Medical College, Amritsar – 143001, Punjab, India.
E-Mail: sharmaritika29@ymail.com

Abstract

Background: The suprascapular notch  is a semicircular notch located at the superior border of the scapula,  just medial to the base of the coracoid process which constitutes the main site of compression of the suprascapular nerve. The aim of present study is to study morphological variations of the suprascapular notch in the North Indian population, classify the suprascapular notch into various types  and to correlate the type of notch to the incidence of suprascapular nerve entrapment syndrome.
Materials and Methods: Material for the present study comprised of 100 adult scapulae (Right : Left :: 50:50) of unknown  age and sex, obtained from Department of Anatomy, Govt. Medical College, Amritsar, Punjab, India.
Results: Suprascapular notch was present in 95% bones, was transversely oval in 66%, vertical diameter = 5.9mm (3.29-16.80mm), transverse diameter = 5.96mm(2.93-13.70mm), distance from the base of suprascapular notch to the superior rim of glenoid = 29.98mm (21.7-39.25mm). It was classified as per Natsis et al classification into type I (20%), type II (39%), type III (34%), type IV (5%) and type V (2%). Our results were compared with the studies of other authors.
Conclusions: The knowledge of classification and the anatomical variations of suprascapular notch helps the clinician to define easily and quickly the type of notch and be able to correlate suprascapular nerve entrapment with a specific type of notch.
KEY WORDS: Suprascapular Notch, Superior Transverse Ligament, Vertical Diameter, Transverse Diameter.

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Ritika Sharma, Rajan Sharma, Rajan Kumar Singla, Jagdev Singh Kullar, Tripta Sharma. SUPRASCAPULAR NOTCH: A MORPHOMETRIC AND MORPHOLOGIC STUDY IN NORTH INDIAN POPULATION. Int J Anat Res 2015;3(3):1306-1311. DOI: 10.16965/ijar.2015.217

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