Original Research Article
Year: 2022 | Month: March | Volume: 9 | Issue: 3 | Pages: 352-364
DOI: https://doi.org/10.52403/ijrr.20220340
Correlation between Morphological Variations and Morphometry of Scapula and Suprascapular Notch with Its Clinical Significance in South Indian Population
Lekshmy Vijay. V.G1, Ramakrishna Avadhani2
1Assistant Professor, Department of Anatomy, Sree Mookambika Institute of Medical Sciences, Kulasekharam, Tamilnadu, India.
2Professor, Department of Anatomy, Yenepoya Medical College, Mangaluru, Karnataka, India.
Corresponding Author: Lekshmy Vijay. V.G
ABSTRACT
Introduction: The biological profile is one of the most important things that forensic anthropologists accomplish in their work, which includes determination of age, sex, race and stature. These components aid in identification of an individual in forensic context. Since the beginning of the field of physical anthropology, anthropologists and anatomists have studied human remains in order to provide new and more accurate ways of building the biological profile.
Aim: To compare the metric difference between right and left scapula, calculate scapular index, and to correlate the morphometry between the scapula and the suprascapular notch.
Materials and Method: This study was carried out in 200 dry ossified adult human scapula bones collected from the Department of Anatomy and from the students of 1st year MBBS of Yenepoya Medical College. Study done using vernier calliper and measuring tape. Scapula having gross deformity or any pathological alterations were excluded from the study.
Results and Discussion: Out of 100 right and left scapulae, maximal width and projection length of scapular spine and maximal length of coracoid process were more on the right sided scapula. The superior- transverse diameter of suprascapular notch, maximal depth of suprascapular notch, morphological length and width of scapula and scapular index were more on the left sided scapulae. The mean scapular index of right side scapula was 70.11 and left side was 70.26, which shows that the left scapula is slightly shorter than right. Also there were more scapulae with longer superior transverse diameter of suprascapular notch (STD>MD) with 52% than the scapulae with longer maximal depth of suprascapular notch (MD>STD) 24% and STD=MD was 9%. Absent notches were seen in 15% of scapulae. The superior transverse scapular ligament was completely ossified in 12% of cases. Both right and left scapula shows more of ‘U-shaped’ suprascapular notch. There was no statistically significant difference between anthropometric measurements of the group with higher maximal depth and the group with higher superior transverse diameter of the suprascapular notch.
Conclusion: The scapular index was more in left scapula, which shows that left scapula is slightly shorter than the right scapula compared to other populations. This may be due to the difference in general built and stature of South Indians compared to other populations. Completely ossified superior transverse scapular ligament can result in entrapment of suprascapular nerve.
Keywords: Scapula, Suprascapular notch, Spine of scapula, Coracoid process.
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