# Current Practice Patterns in Microvascular Decompression for Trigeminal Neuralgia: Results From an International Survey in Central Europe

## TL;DR

This study surveyed neurosurgeons in Central Europe to understand current surgical practices for treating trigeminal neuralgia using microvascular decompression.

## Contribution

The paper provides insights into current surgical techniques and deviations from original MVD practices through an international survey.

## Key findings

- Most surgeons do not impose an age limit for MVD.
- Teflon is the most commonly used interposition material.
- Neuromonitoring is regularly used by a majority of practitioners.

## Abstract

Background

Trigeminal neuralgia is a facial pain disorder, most often caused by neurovascular contact at the trigeminal root. In cases refractory to pharmacotherapy, microvascular decompression (MVD) is an established treatment. Since its description, various modifications have been introduced. The extent to which current practice deviates from the original approach remains unclear. This study aimed to assess current strategies in MVD for trigeminal neuralgia.

Methods

A cross-sectional survey study was conducted by distributing a web-based 14-item questionnaire to neurosurgeons with expertise in MVD from Germany, Austria, Switzerland, Italy, and Luxembourg. The link to the survey was shared between May and August 2025 and was not made public. To avoid institutional clustering, only one practitioner per institution was invited to participate anonymously.

Results

Of 123 neurosurgeons invited, 63 completed the questionnaire (response rate 51.2%). Around 59/63 respondents (93.7%) do not consider an age limit for MVD. Surgery is most commonly performed in the supine (29/63 respondents, 46.0%) or lateral (25/63 respondents, 39.7%) position, either purely microscopically (41/63 respondents, 65.1%) or with endoscopic assistance (19/63 respondents, 30.2%). Neuromonitoring is regularly used by 45/63 practitioners (71.4%). Trepanation is usually performed either osteoplastically or osteoclastically with Palacos cranioplasty (23/63 respondents, 36.5% each). Teflon is the most frequently used interposition material (47/63 respondents, 74.6%). Around 41/63 participants (65.1%) never sacrifice the superior petrosal vein. Only five of 63 (7.9%) would generally refrain from MVD if no neurovascular contact is evident on radiological examination.

Conclusions

This survey demonstrates current practice patterns in MVD for trigeminal neuralgia in Central Europe. While some principles of the original technique remain widely adopted, notable changes in operative strategy are apparent, highlighting areas for future consensus-building and research and informing operative decision-making.