Morphometric description of greater & lesser tubercles at proximal humerus: An Anatomical study
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Abstract
Background: Humerus, a typical long bone of arm forms shoulder joint at its proximal end and elbow joint at its distal end. Greater and lesser tubercles are two bony protrusions present on its proximal end with intertubercular sulcus (Bicipital groove). These tubercles are very much prone to fractures & also many other pathological conditions of shoulder joint which is termed as the most mobile joint. So, the main aim of our current study was to estimate the morphometry of greater and lesser tubercles of proximal humerus among North Indian Population group.
Materials and Methods: This present study was conducted on 100 adult dry humerii of both sexes obtained from bone bank, Department of Anatomy, FMHS, SGT University, Gurugram, Haryana, India over a span of one year. Detailed Morphometry of Greater and lesser tubercles like length and width along with some bony distances were measured using digital vernier calliper on both sided bones.
Results: The mean value with standard deviation for length and width of greater tubercle was 30.88±1.78 mm & 6.53±1.56 mm respectively & length and width of lesser tubercle was 16.29±1.30 mm & 4.35±1.85mm respectively on right side which was comparatively more than the left side. But distance from head to lesser tubercle was comparatively more on both sides than distance from greater tubercle.
Conclusion: The morphometry of Greater and lesser tubercles of humerus among North Indian population will be a great help for the surgeons for the management of proximal humeral fractures & associated abnormalities.
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