Morphometric Study of Atlas Vertebra in Rewa Region
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2018, Vol 3, Issue 4
Abstract
Introduction: Atlas is the first cervical vertebra. It articulates with the occipital bone above and the axis vertebra below. It plays an important role in movement of the skull and the neck. Atlas vertebra is also an important part of bony anatomy of Cranio-vertebral Junction. The stability of the atlas is provided by two symmetrical lateral masses that are united by anterior and posterior arches. These lateral masses are thick, supportive elements composed of both superior and inferior articular facets. Materials and Methods: For the study of various metric parameters, 40 atlas vertebrae were used. Maximum anteroposterior (AP) and transverse (T) diameter of Superior articular facets (SAF) and Inferior articular facets(IAF) were measured with Vernier calipers and the data were analyzed. Results and Conclusion: The mean values obtained for all the parameters were more or less similar to other studies. In the present study, the AP diameters of SAFs were less as compared to the western population. The values of AP & T diameter of IAF was also found less in Indian population. The knowledge of the dimensions of the SAF (AP:18.45 mm; T: 10.21mm) and IAF (AP:16.62 mm; T:14.24 mm) help in safe planning of the screw placement during Cranio-vertebral Junction surgery.
Authors and Affiliations
Bhaskar B. Reddy
Keywords
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