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Journal of Korean Neurosurgical Society 2006;39(3): 221-223. |
| Retro-odontoid Synovial Cyst with Os Odontoideum and Atlantoaxial Instability. |
| Sang Woo Kim, Chul Hoon Chang, Seong Ho Kim |
| Department of Neurosurgery, College of Medicine, Yeungnam University, Daegu, Korea. sw902@yumail.ac.kr |
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| ABSTRACT |
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We report the case of a patient with a retro-odontoid synovial cyst, coupled with os odontoideum and atlantoaxial instability. We observed the regression of the cyst after C1-2 transarticular screw fixation and posterior wiring without direct surgical excision of the cyst on the follow-up MR images, which were obtained two and three months postoperatively. The myelopathic symptoms and signs of this patient were resolved by degrees. |
| Key Words:
Synovial cyst; Os odontoideum; Atlantoaxial instability; C1-2 fixation; Spontaneous reduction |
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