Journal: Drug Invention Today

Article Id: JPRS-Pcol-00002518
Title: Variation in the occurrence of median occipital condyle and its impact on atlanto-occipital joint and atlantoaxial stability
Category: Pharmacology
Section: Research Article
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    Introduction: The third occipital condyle is a constituent part of median occipito-atlanto-odontoid joint. The third condyle also known as median occipital condyle is a rare anatomic variant of the occipital condyles. It is a small separate ossicle at the anteromedial margin of the occipital condyle formed by the failure of the embryonic proatlas to unite with the condyle proper. In higher mammals like humans, it may contribute to anomalous structures around the foramen magnum which is referred as the third occipital condyle. Materials and Methods: In the present study, a total of 50 dry human skulls of unknown sex and without any gross breakage were used. All the skulls were subjected for visual and morphological analysis of third occipital condyle at the midpoint of the anterior part of foramen magnum. The presence of the third occipital condyle and its prevalence were noted and analyzed. Results: The third occipital condyle is observed only in four skull bones (8%). It was photographed and analyzed for its prominence. Conclusion: The anatomical variations of the presence of the third condyle can be explained by the different degrees of persistence. A small third occipital condyle located in the median-sagittal plane at the midpoint of the anterior margin of foramen magnum represents the highest degree of persistence. If the third occipital condyle is present, it may serve as an articulating facet for the tip of the dens or with the anterior arch of the atlas.

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    Author(s) Name:

    R. Ashwin Kumar1 , K. Yuvaraj Babu2 , Karthik Ganesh Mohanraj 2 *

    Affiliation(s) Name:

    1 Department of Anatomy, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India,

    2 Department of Anatomy, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India

    *Corresponding author: Karthik Ganesh Mohanraj, Department of Anatomy, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Saveetha University, 162, Poonamallee High Road, Chennai - 600 077, Tamil Nadu, India.

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    Author:

    R. Ashwin Kumar1 , K. Yuvaraj Babu2 , Karthik Ganesh Mohanraj 2 *

    Title:Variation in the occurrence of median occipital condyle and its impact on atlanto-occipital joint and atlantoaxial stability
    Journal:Drug Invention Today
    Vol(issue):10 (Oct)
    Year:2018
    Page No: (1896-1898)
  • Experimental Methods Keywords

    Methodology:Atlanto-occipital joint, Foramen magnum, Occipital condyle, Proatlas, Third occipital condyle
    Research Materials:50 dry human skulls

Keywords

Atlanto-occipital joint Foramen magnum Occipital condyle Proatlas Third occipital condyle

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