IJAR.2016.496

Type of Article:  Original Research

Volume 5; Issue 1 (January 2017)

Page No.: 3430-3434

DOI: https://dx.doi.org/10.16965/ijar.2016.496

A STUDY ON THE MORPHOLOGICAL VARIATIONS OF THE SUPRASCAPULAR NOTCH IN THE POPULATION OF EASTERN DELTA REGION OF TAMIL NADU

Sumathi Shanmugam*1, Muthuprasad Puthuraj 2, Gayathri Jayamurugavel 3, Sivakami Thiagarajan 4.

*1 Senior Assistant Professor, Department of Anatomy, Thanjavur Medical College, Thanjavur, India.

2 Senior Assistant Professor, Department of Anatomy, Government Thiruvarur Medical College, Thiruvarur, India.

3 Assistant Professor, Department  of Anatomy, Thanjavur Medical College, Thanjavur, India.

4 Professor & HOD, Department of Anatomy, Thanjavur Medical College, Thanjavur, India.

Address for Correspondence: Dr.Sumathi Shanmugam, 59, First Street, North Natarajapuram, Thanjavur-613004. E-Mail: tnj_muthu@yahoo.com

ABSTRACT

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

Materials and Methods: A total of 176 dried human scapulae irrespective of age and sex were obtained from the Department of Anatomy and were morphologically analysed for the type of suprascapular notch based on the Rengachary et al classification.

Results: Suprascapular notch was absent in four scapulae. Type III was the commonest type with seventy four scapulae[43.03%] and type IV was the least observed with six scapulae[3.48%].The prevalence of Type-I was 11.63%,Type-II was 23.26%,Type-V was 5.81% and Type-VI was 12.79%.

Conclusions: The higher incidence of suprascapular foramen in these studies stresses the need to have a knowledge of the morphology of suprascapular notch.. The determination of the type of notch helps in clinical screening of high risk population while evaluating the patients with shoulder pain.

KEY WORDS: Suprascapular Notch, Morphological types, Suprascapular Nerve Entrapment.

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Cite this article: Sumathi Shanmugam, Muthuprasad Puthuraj, Gayathri Jayamurugavel, Sivakami Thiagarajan. A STUDY ON THE MORPHOLOGICAL VARIATIONS OF THE SUPRASCAPULAR NOTCH IN THE POPULATION OF EASTERN DELTA REGION OF TAMIL NADU. Int J Anat Res 2017;5(1):3430-3434. DOI: 10.16965/ijar.2016.496
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