J Korean Neurosurg Soc.  1998 Oct;27(10):1429-1433.

Staged Decompression of Chiari Malformation Associated with Basilar Invagination: A Case Report

Affiliations
  • 1Department of Neurosurgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Abstract

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.

Keyword

Chiari malformation; Basilar invagination; Posterior decompression; Staged decompression; Transoral anterior decompression

MeSH Terms

Ataxia
Brain Stem
Cerebellar Ataxia
Decompression*
Foramen Magnum
Gait Disorders, Neurologic
Humans
Muscle Spasticity
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