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KMID : 0388720120190020064
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Journal of Korean Society of Spine Surgery
2012 Volume.19 No. 2 p.64 ~ p.67
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Congenital Hypoplasia of the Posterior Arch of the Atlas Associated with a Fracture of the Odontoid Process - A Case Report -
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Oh Sung-Kyun
Lee Seung-Bin
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Abstract
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Study Design: Case report.
Objectives: To report a rare posterior arch hypoplasia of the atlas and review the clinical significance.
Summary of Literature Review: Congenital hypoplasia of posterior arch of the atlas is uncommon. In particular, the combined fracture of the odontoid process has not been reported.
Materials and Methods: A 56-year-old man developed severe neck pain after a traffic accident. Cervical CT scan revealed a fracture of the odontoid process and hypoplasia of posterior arch of the atlas.
Results: Bony union was achieved after halo vest immobilization for three months.
Conclusions: Hypoplasia of posterior arch of the atlas is determined incidentally in asymptomatic patients. However, the patients should be evaluated in detail with a 3D CT and MRI to avoid a misinterpretation as fracture, instability or misdiagnosis.
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KEYWORD
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Atlas, Hypoplasia, Congenital, Anomaly, Dens fracutre
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