J Korean Neurosurg Soc.  1985 Sep;14(3):557-564.

Transoral Decompression and Anterior Fusion of Atlanto-axial Dislocation due to Os Odontoideum: Case Report

Affiliations
  • 1Department of Neurosurgery, Capital Armed Forces General Hospital, Seoul, Korea.

Abstract

The Os odontoideum is a developmental anomaly of the axis in which the odontoid process is divided transversely. The Atlanto-axial dislocation due to Os odontoideum is presented. At first, we have performed the posterior atlanto-axial fusion with wire fixation. But the posterior fusion failed in realignment and did not adequately decompress the deformed cord by encroachment on its ventral surface. Next time, we have experienced further improvement following transoral decompression and anterior fusion.

Keyword

Os odontoideum; Atlanto-axial dislocation; Posterior fusion; Transoral decompression and anterior fusion

MeSH Terms

Axis, Cervical Vertebra
Decompression*
Dislocations*
Odontoid Process
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