Application of masseteric-to-facial nerve trunk transfer in complete facial paralysis after lateral skull base tumor surgery: an anatomical-based analysis and clinical outcome evaluation

Objectives: To evaluate the anatomical feasibility of masseteric-to-facial nerve trunk transfer and obtain the relevant anatomical parameters, and to assess the surgical feasibility and functional outcomes of this technique in complete facial paralysis following lateral skull base tumor surgery.

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Masseteric-to-facial nerve trunk transfer shows anatomical feasibility for complete facial paralysis after lateral skull base surgery, but the retrospective/descriptive design means surgeons should treat findings as hypothesis-generating rather than immediately practice-changing.

Lateral skull base tumor surgery carries a significant risk of permanent facial paralysis; validated reinnervation techniques could meaningfully improve quality of life for this patient group.

1. 01Study evaluates masseteric nerve-to-facial nerve trunk transfer as a reinnervation strategy after lateral skull base tumor removal.
2. 02Both anatomical parameters and clinical outcomes were assessed, providing a dual feasibility lens.
3. 03Complete facial paralysis (House-Brackmann VI equivalent) was the target condition — one of the most functionally devastating surgical complications.
4. 04Findings are anatomically grounded, potentially guiding surgical planning and patient selection.
5. 05Retrospective design limits causal conclusions; prospective controlled data are needed.

PMID

42951856

DOI

10.3760/cma.j.cn112139-20260422-00165.

Journal

Chinese Journal of Otorhinolaryngology Head and Neck Surgery

Publication type

research_article

Evidence level

4

Population

Patients with complete facial paralysis following lateral skull base tumor surgery

Intervention

Masseteric-to-facial nerve trunk transfer