Related Experiment Video
Updated: Jan 12, 2026

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Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
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Microvascular Decompression in a Patient With Positional Hemifacial Spasm: Case Report.
Christopher Adams1, Ali Samii2, Turner Peckham1
1Department of Neurology, The University of Tennessee Health Science Center, Memphis, Tennessee, USA.
Neurosurgery Practice
|October 30, 2025
Summary
This is the first reported case of position-dependent hemifacial spasm (HFS) in the prone position. Surgical decompression completely resolved the patient's HFS, highlighting a novel treatment approach.
Area of Science:
- Neurology
- Neurosurgery
Background:
- Hemifacial spasm (HFS) is typically caused by vascular compression of the facial nerve.
- Rarely, HFS can be position-dependent, influenced by patient posture.
- This study details a unique case of HFS triggered by the prone position.

