期刊名称：International Journal of Anatomy and Research
印刷版ISSN：2321-4287
出版年度：2017
卷号：5
期号：4
页码：4575-4580
DOI：10.16965/ijar.2017.399
出版社：International Journals of Medical and Health Research
摘要：Background: Atlas the first cervical vertebra, shows great morphological variations. Frequently bony spurs arisefrom the anterior and posterior margin margins of the groove for vertebral artery and sometimes convert thegroove into a foramen termed as Posticus Ponticus or arcuate foramen or retroarticular foramen. This type offoramen is reported by different workers to be present in 2.25% to 45.9% of the population depending upon theage, gender, side and race.Aim: to find out the incidence and type of Retroarticular foramina, their relation with side and their differentdiameter and cross sectional area.Materials and Method: the present study was conducted on 40 complete (80 sides) undamaged dry human atlasvertebra of unknown age and gender obtained from the Department of Anatomy, Government Medical College,Patiala, Punjab.Results: complete foramen was found bilaterally in one vertebra (2.5%) and unilaterally on left side in 2(5%) & onright side in 1 (2.5%) vertebra. Thus it was more on the left side as far as side is concerned. If taken unilaterallyin toto, out of 80 sides of 40 vertebra it was seen in 5 (6.25%) sides. However partial bridging or incompleteforamen was seen bilaterally in 33 (82.5%) and on right side only in 2 (5%) & on left side only in 1 (2.5%) vertebra.Conclusion: neurologists, neurosurgeons and medical community in general should have knowledge about thevariation and try to look for it when dealing with patients complaining of symptoms of vertebro-basilarinsufficiency like headache, vertigo, shoulder and arm pain.
