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Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations

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Published on: October 20, 2017

The complex Chiari: issues and management strategies.

Douglas L Brockmeyer¹

¹Department of Neurosurgery, Primary Children's Medical Center, University of Utah, 100 N. Mario Capecchi Dr, Salt Lake City, UT 84113, USA. douglas.brockmeyer@hsc.utah.edu

Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

|August 9, 2011

Summary

This summary is machine-generated.

Complex Chiari malformations, involving cerebellar tonsil herniation and additional findings, require tailored surgical strategies beyond standard decompression. Management may include odontoid resection and craniocervical fusion for optimal patient outcomes.

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Area of Science:

Neurosurgery
Neurology
Radiology

Background:

Complex Chiari malformations present with cerebellar tonsil herniation and associated radiographic abnormalities.
These differ from typical Chiari 1 malformations due to the presence of additional findings such as brainstem herniation, medullary kink, or basilar invagination.

Purpose of the Study:

To define complex Chiari malformations.
To outline specific scenarios necessitating surgical interventions beyond suboccipital decompression.
To highlight the role of odontoid resection and craniocervical fusion in managing complex cases.

Main Methods:

Review of radiographic findings defining complex Chiari malformations.
Analysis of patient management strategies in typical versus complex Chiari cases.
Identification of indications for additional operative procedures like odontoid resection and craniocervical fusion.

Main Results:

Complex Chiari malformations are characterized by cerebellar tonsil herniation plus specific findings (e.g., Chiari 1.5, medullary kink, basilar invagination, syringomyelia).
Management of complex Chiari malformations often requires interventions beyond suboccipital decompression.
Procedures such as odontoid resection and craniocervical fusion are critical in specific complex Chiari scenarios.

Conclusions:

Complex Chiari malformations represent a distinct group requiring specialized surgical approaches.
Early identification of associated radiographic findings is crucial for appropriate treatment planning.
Tailored surgical interventions, including fusion and resection, improve outcomes for patients with complex Chiari malformations.