Morphological Study of Superior Articular Facet of Atlas
Journal Title: Indian Journal of Anatomy - Year 2018, Vol 7, Issue 4
Abstract
Aim: The variations of superior articular facets of the Atlas vertebra has been less described in most of the anatomy textbooks though it is significant clinically. Different authors have described the superior articular facets based on constrictions, grooves and shapes. Present study deals with the division of the facet, constrictions , grooves, division, shapes and depth, its frequency and possible explanation. Materials and Methods: 100 superior articular facets of 50 dried, adult atlas vertebrae were collected from the bone library, Department of Anatomy, Subbaiah Institute of Medical Sciences, Shimoga. Results: Constrictions on medial margin were more frequent, 54% bilaterally followed by constrictions on both the margins about 46% on right side and 44% on left side. Grooves were observed about 46% on right and 44% on left side on the superior articular facets. According to constriction and groove, the facets were divided into complete, incomplete and non division. Non divisions were frequently seen, 54% on right and 56% on left side and complete divisions were less frequent, 8% on right and 2% on left side. Shapes of the facets were also defined according to its division. Kidney- shaped facets (54% bilaterally) were commonly observed followed by dumb-bell shape with left side predominance (36%). Depth of the facets was studied where concave was more common. Conclusion: The knowledge of variations of superior articular facets of Atlas is of importance to anatomists, anthropologists and clinicians since asymmetry may lead to restricted movements of atlanto-occipital joint and incomplete decompression of neuro-vascular structures.
Authors and Affiliations
Divya Shanthi D’Sa
Keywords
Related Articles
- EP ID EP509423
- DOI 10.21088/ija.2320.0022.7418.3
- Views 61
- Downloads 0
Study of Palmar Dermatoglyphics in Patients of Coronary Artery Disease in Bidar (North Karnataka)
Introduction: Dermatoglyphics is the scientific study of epidermal ridges and their configurations on the palmar region of hands and fingers. As a diagnostic aid, it is now well established in a number of diseases which...
Ultrasonographic Evaluation of Fetal Gestational Age in Different Trimesters from Various Anatomical Biometric Parameters
Introduction: Ultrasound has become the essential tool of modern obstetric practice. Ultrasound dating along with LMP provides more accurate gestational age assessment than menstrual dating alone. Aim: To estimate gestat...
Estimation of Stature from Cephalo-Facial Dimensions: A Cross Sectional Study in Central India
Introduction: Highly decomposed, mutilated & dismembered body parts like skull or facial remains are often brought for the medico-legal examination. Under such circumstances, cephalo–facial parameters are crucial in esta...
The Study of the Variant Origin and Course of the Vertebral Artery
The aim of study was to present and describe the variant anatomical origins of the vertebral artery and its entrance into the cervical vertebra. The study material consists of 50 embalmed cadavers 9 females and 41 males...
Palmar Dermatoglyphic Study in Diabetes Mellitus in Davangere District
Background and Objectives: Diabetes mellitus is one of the most common endocrine disorders affecting almost 6% of the world’s population. The global prevalence of diabetes mellitus is rapidly increasing as a result of po...