Atormac
Neurology India
menu-bar5 Open access journal indexed with Index Medicus
  Users online: 2133  
 Home | Login 
About Editorial board Articlesmenu-bullet NSI Publicationsmenu-bullet Search Instructions Online Submission Subscribe Videos Etcetera Contact
  Navigate Here 
 »   Next article
 »   Previous article
 »   Table of Contents

 Resource Links
 »   Similar in PUBMED
 »  Search Pubmed for
 »  Search in Google Scholar for
 »Related articles
 »   Citation Manager
 »   Access Statistics
 »   Reader Comments
 »   Email Alert *
 »   Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed23965    
    Printed469    
    Emailed25    
    PDF Downloaded911    
    Comments [Add]    
    Cited by others 52    

Recommend this journal

 

 ORIGINAL ARTICLE
Year : 2004  |  Volume : 52  |  Issue : 2  |  Page : 178--184

Vertebral artery in relationship to C1-C2 vertebrae: An anatomical study


Department of Neurosurgery, Seth G. S. Medical College and King Edward Memorial Hospital, Parel, Mumbai, India

Correspondence Address:
Atul Goel
Department of Neurosurgery, King Edward Memorial Hospital, Parel, Mumbai
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


PMID: 15269464

Rights and PermissionsRights and Permissions

BACKGROUND: Ten randomly selected adult cadaveric specimens were dissected to analyse the anatomy of the vertebral artery during its course from the C3 transverse process to its entry into the spinal dural canal at the level of C1. In addition, 10 dry cadaveric C1-C2 bones were studied. The course of the artery and the parameters relevant during surgery in the region are evaluated. METHODS: Ten adult cadaveric specimens and 10 adult dry cadaveric C1 and C2 bones were studied. In five cadaveric specimens, the arteries and veins were injected with coloured silicon. The artery during its course from the transverse process of C3 to the transverse process of C2 was labelled as V1 segment, the artery during its course from the C2 transverse process to the C1 transverse process was labelled as V2 segment and the segment of the artery after its exit from the transverse foramen of C1 to the point of its dural entry was labelled as V3 segment. The relationship of the artery to the C1-2 joint and facets, distance of the location of the artery from the midline, from the C2 ganglion and from the other surgery related landmarks were evaluated. The extent of occupancy of the artery into the vertebral artery groove on the inferior surface of the superior facet of the C2 vertebra, and over the posterior arch of the atlas was studied. RESULTS: The V1 segment of the vertebral artery takes a varying degree of loop inside the vertebral artery foramen on the inferior aspect of the superior facet of the C2 vertebra. The loop extends towards the midline and was at an average distance of 14.6 mm from the midline of the vertebral body. The V2 segment of the artery takes an initial lateral loop after its exit from the transverse process of the C2 vertebra. The average distance of the artery from the lateral end of the C2 ganglion was 7.2 mm and from the dural tube was 15.3 mm. The vertebral artery groove in the superior facet of C2 and the groove over the posterior arch of the atlas were completely occupied by the vertebral artery only in six sides and in none respectively, suggesting the possibility of the dynamic nature of the relationship of the artery to the bone. CONCLUSIONS: The vertebral artery adopts a serpentine course in relationship to the C2 vertebra, making it susceptible to injury during the surgical procedures in the region. The multiple loops of the artery and a buffer space within the vertebral artery groove on the inferior surface of the superior facet of the C2 vertebra and over the posterior arch of atlas provide the artery an extra length and space, probably essential to avoid any stretch during neck movements.






[FULL TEXT] [PDF]*


        
Print this article     Email this article

Online since 20th March '04
Published by Wolters Kluwer - Medknow