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Updated: Jun 9, 2025
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A Unified Methodological Framework for Vestibular Schwannoma Research
Published on: June 20, 2017
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Translabyrinthine versus Retrosigmoid Approach for Vestibular Schwannoma: A Systematic Review and An Updated
Frederico L Gibbon1,2, Rafaela J Lindner3, Antônio D M Vial1
1Department of Neurosurgery, Santa Casa de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.
Summary
The translabyrinthine approach (TLA) for vestibular schwannoma (VS) surgery shows no increased risk of cerebrospinal fluid leak or meningitis compared to the retrosigmoid approach (RSA). TLA offers a shorter hospital stay and better facial nerve outcomes.
Area of Science:
- Neurosurgery
- Otolaryngology
- Oncology
Background:
- Vestibular schwannoma (VS) surgical treatment involves various approaches with debated optimal methods.
- Comparing the translabyrinthine approach (TLA) and retrosigmoid approach (RSA) is crucial for patient outcomes.
Purpose of the Study:
- To systematically review and meta-analyze postoperative complications of TLA versus RSA for VS.
- To compare outcomes including cerebrospinal fluid (CSF) leak, facial nerve dysfunction (FND), length of stay (LOS), and meningitis.
Main Methods:
- Systematic review and meta-analysis of studies from PubMed, Web of Science, Embase, and Cochrane.
- Primary outcome: CSF leak. Secondary outcomes: FND, LOS, meningitis.
- Risk of bias assessed using ROBINS-I; heterogeneity evaluated with I² statistics.
Main Results:
- 21 studies including 4572 patients (2687 TLA, 1885 RSA) were analyzed.
- No significant difference in CSF leak or meningitis rates between TLA and RSA.
- TLA associated with shorter LOS and improved facial nerve outcomes (HB grade 4 or lower).
Conclusions:
- TLA and RSA demonstrate comparable rates of CSF leak and meningitis for VS surgery.
- TLA offers advantages of reduced length of stay and better facial nerve preservation.
- The choice of surgical approach should consider these comparative outcomes.
