Document Detail


Delayed development of os odontoideum after traumatic cervical injury: support for a vascular etiology.
MedLine Citation:
PMID:  21284467     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A previously healthy 2-year-old girl sustained a C1-2 ligamentous injury after a motor vehicle accident and underwent successful halo immobilization, with postimmobilization images showing good cervical alignment. At the time, plain radiography, CT scanning, and MR imaging showed a normal odontoid. Four years later, however, the patient was found to have an os odontoideum, evident on plain radiography and CT imaging. At the 10-year follow-up, the os odontoideum had not been surgically repaired, and the child had mild hypermobility. This is the first documented case in the modern imaging era of delayed os odontoideum formation after definitive CT scanning showed no fracture. As such, this suggests that os odontoideum may result from traumatic vascular interruption in the developing spine, with resulting osseous remodeling leading to an os odontoideum. This case argues against the congenital etiology of os odontoideum, as well as the strict posttraumatic theory whereby a trauma-induced odontoid fracture leads to osseous remodeling and subsequent development of an os odontoideum.
Authors:
Corinna C Zygourakis; Kevin S Cahill; Mark R Proctor
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of neurosurgery. Pediatrics     Volume:  7     ISSN:  1933-0715     ISO Abbreviation:  J Neurosurg Pediatr     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-02-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101463759     Medline TA:  J Neurosurg Pediatr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  201-4     Citation Subset:  IM    
Affiliation:
Department of Neurosurgery, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts.
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