Elongated Odontoid Process of Axis Vertebra.
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Date
2014-07
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Abstract
Introduction: Odontoid process is a bony projection of axis around which the atlas rotates. It measures 1 to
1.25 cms in length and projects upwards from the body of Axis. An elongated odontoid process may narrow the
foramen magnum causing compressive neurological symptoms. It can cause cervical stiffness, serious restrictions
of neck movement, and even a bone-derived torticollis.
Observation: During routine osteology classes, we encountered an Axis vertebra with an elongated odontoid
process. The measurements of the elongated odontoid process were taken using digital Vernier slide calipers.
Conclusion: Elongated odontoid process can be mistaken for fracture of dens in radiological images; hence the
knowledge of elongated odontoid process is useful for the radiologists, neurosurgeons and orthopaedicians for
accurate diagnosis and treatment involving cranio-vertebral junctions.
Description
Keywords
Elongated odontoid process, Crowned dens syndrome, Calcification, Apical ligament, Alar ligament, Neck stiffness, Atlanto-axial instability, Cranio-vertebral junctions
Citation
Kumar Prathap J, Anupama K, Radhika P M, Komala N. Elongated Odontoid Process of Axis Vertebra.International Journal of Anatomy and Research. 2014 Jul-Sep; 2(3): 594-596.