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IJAR.2016.494

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Type of Article:  Original Research

Volume 5; Issue 1 (January 2017)

Page No.: 3426-3429

DOI: https://dx.doi.org/10.16965/ijar.2016.494

ANATOMICAL VARIATIONS IN FORAMEN TRANSVERSARIUM OF TYPICAL CERVICAL VERTEBRAE AND ITS CLINICAL SIGNIFICANCE

Manoj P Ambali * 1, Surekha D Jadhav 2.

*1 Krishna Institute of Medical Sciences, Deemed University, Karad, Maharashtra, India

2 P D V V P F’s Medical Collage, Ahmednagar, Maharashtra, India.

Correspondence address Dr. Surekha D Jadhav (MD), Associate Professor, Department of Anatomy, PDVVPF Medical Collage, Vadgaon –Gupta (Viladghat)  Post: M.I.D.C., Ahmednagar, Maharashtra, India, Pin: 414111, Mobile no- +91 9923373960 E-Mail: drsurekhadjadhav@gmail.com

ABSTRACT

Background: Cervical vertebrae have a typical feature that is presence of foramen bilaterally in their transverse process which is named as foramen transversarium through it passes vertebral artery, vertebral vein and sympathetic plexus of nerves. Among these cervical vertebrae typical cervical vertebrae have a typical bifid spine along with foramen transversarium. Deformation and variations of this foramen may affect the anatomical course of vascular and neural structures, and consequently may cause pathological conditions.

Objectives: To observe the anatomical variations in the foramen transversarium of typical cervical vertebrae.

Materials and Methods: Present work was carried on 163 dry typical (C3-C6) cervical vertebrae of unknown sex and age. Each vertebra was observed for shape, symmetry and number of foramen transversarium present in both transverse processes of cervical vertebra. Also we observed presence of any bony spicules in foramen transversarium.

Results: We found accessary foramen transversarium in 24 (14.72%) vertebrae. Among these 16 (9.81%) vertebrae were having bilateral and 8 (4.90%) vertebrae had unilateral accessary foramen transversarium. We classified foramen transversarium according to the shape and direction of the main diameter of foramen into seven types.

Conclusions: Anatomical knowledge of these variations is helpful for spine surgeons in preoperative planning and for preventing injury of vertebral vessel along with sympathetic nerves during cervical surgical approaches.

Key words: Foramen Transversarium, Typical Cervical Vertebrae, Accessory Foramen, Vertebral Artery, Vertebral Vein.

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Cite this article: Manoj P Ambali, Surekha D Jadhav. ANATOMICAL VARIATIONS IN FORAMEN TRANSVERSARIUM OF TYPICAL CERVICAL VERTEBRAE AND ITS CLINICAL SIGNIFICANCE. Int J Anat Res 2017;5(1):3426-3429. DOI: 10.16965/ijar.2016.494