Abstract

Introduction: Foramen transversarium is a characteristic feature of Cervical vertebrae. This foramen transmits vertebral artery, vein and sympathetic fibers. The presence of accessary foramen transversarium may affect the course of these structures resulting in diverse clinical presentations ranging from headache to disturbances in equilibrium – vertebrobasilar insufficiency. Thus the knowledge of accessary foramen transversarium is essential for Neurologists, Neurosurgeons, Orthopaedicians and radiologists. Material and Methods: Hundred adult Cervical vertebrae were taken for this study. Deformed and damaged cervical vertebrae were excluded from this study. Results: Accessory foramen transversarium were found in 9 cervical vertebrae. Out of these in 5 cervical vertebrae accessory foramen transversarium was present unilaterally, in 3 vertebrae on left side and in case of 2 vertebrae on right side. Bilateral presence of foramen transversarium was observed in 4 vertebrae. Conclusion: Unilateral Presence of accessary foramen transversarium is more common (5%) than bilateral (4%).The left sided accessory foramen transversarium are more frequent (3%) than the right sided (2%). Absent foramen Transversarium is rare. In our series of 100 cervical vertebrae we did not found it.

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