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[Chiari malformations and hydrosyringomyelia]
1División de Neurocirugía, Children's Hospital of Philadelphia, Pennsylvania 19104, USA.
Introduction:
The association of hindbrain herniation, better known as Chiari malformation, and cystic cavitation of the spinal cord or hydrosyringomyelia has been well described in the literature although there is little consensus regarding its etiology, pathophysiology or optimal treatment.
Development:
Despite a well-accepted and utilized classification system of both Chiari malformation and hydrosyringomyelia, there remains considerable disagreement regarding the proper management of these patients.
Conclusions:
This article reviews several popular theories on the etiology and pathophysiology of this disorder, briefly discusses the clinical features and radiologic findings associated with Chiari malformation and hydrosyringomyelia, and reviews basic surgical techniques for decompression of the cranial-cervical junction and treatment of the hydrosyringomyelia.