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Journal of Korean Neurosurgical Society 1998;27(10): 1429-1433.
Staged Decompression of Chiari Malformation Associated with Basilar Invagination: A Case Report.
Seok Gu Kang, Sin Soo Jeun, Il Woo Lee, Choon Kun Park, Yong Gil Hong, Moon Chan Kim, Joon Ki Kang
Department of Neurosurgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
The staged decompression(posterior and anterior) of foramen magnum was performed in the patient with Chiari I malformation associated with basilar invagination. Three years prior to admission, the patient was admitted due to ataxia and dysmetria. After the posterior decompression of foramen magnum, the patient's cerebellar sign improved significantly. But spastic gait disturbace was noted two years later. We performed a transoral anterior decompression to relieve brain stem compression, and an occipitocervical fusion with contoured rod to prevent possible instability. Following the operation, the spasticity improved. The authors believe this sets the successful staged decompression of Chiari I malformation associated with basilar invagination.
Key Words: Chiari malformation; Basilar invagination; Posterior decompression; Staged decompression; Transoral anterior decompression
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