What Is Chiari Malformation?
8. How Does Cranial Decompression Surgery Help?
Decompression surgery involves removing a small portion of bone from the base of the skull. The rear part of several vertebrae may also be removed or cut down. This creates a wider opening so cerebrospinal fluid can flow more freely. Widening the foramen magnum may not be sufficient for all CM patients.
In those cases, the doctor may apply a patch to the dura to create more space. A shunt may also be placed inside of the skull or spinal column during the procedure. This allows excess fluid to drain and further relieves intracranial pressure.
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