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Journal of the Korean Academy of Rehabilitation Medicine 2000;24(4):803-808.
Quadriplegia and Dyspnea Caused by Os Odontoideum in a Down Syndrome Patient: A case report.
Suh, Jung , Park, Joo Hyun , Jung, Kyung Hee , Joa, Kyung Hee
Department of Rehabilitation Medicine, College of Medicine, The Catholic University of Korea.
다운 증후군 환아에서 Os Odontoideum에 의한 사지마비 및 호흡부전 ⁣증례 보고⁣
서정, 박주현, 정경희, 좌경희
가톨릭대학교 의과대학 재활의학교실

Os odontoideum is a rare anomaly of the second cervical vertebrae, which is a separated ossicle from the body of the axis. This abnormality of the odontoid process can result in an atlanto-axial instability & subsequent cervical cord compression. In spite of the high prevalence of atlanto-axial instability due to the ligamentous laxity of atlanto-axial joint, the frequency of neurologic symptoms is relatively low in the patient of the Down syndrome. The asymptomatic atlanto-axial instability by trauma may progress to Os odontoideum in Down syndrome population and may cause cervical cord compression. Therefore, early recognition and an appropriate management of patients with atlanto-axial instability can significantly reduce the morbidity and mortality.

We report a case of Os odontoideum in a child with Down syndrome, who had an atlanto-axial instability which resulted in the cervical cord compression.

Key Words: Os odontoideum, Os odontoideum, Down syndrome, Atlanto-axial instability


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