Evidence map›Paper›PMID 41276660›Full record

ArticleEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2026

Optimizing facial reanimation: surgical landmarks for masseteric-to-facial nerve anastomosis.

Samy Hannas, Asimakis D Asimakopoulos, Yann Lelonge

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Article in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

3 authors.

Samy HannasDepartment of Otorhinolaryngology - Head and Neck Surgery, Saint- Etienne University Hospital, Av. Albert Raimond, Saint- Priest-En-Jarez, 42270, France.
Asimakis D AsimakopoulosDepartment of Otorhinolaryngology - Head and Neck Surgery, Saint- Etienne University Hospital, Av. Albert Raimond, Saint- Priest-En-Jarez, 42270, France. aasimak@outlook.com.ORCID http://orcid.org/0000-0002-3373-0216
Yann LelongeDepartment of Otorhinolaryngology - Head and Neck Surgery, Saint- Etienne University Hospital, Av. Albert Raimond, Saint- Priest-En-Jarez, 42270, France.

Funding

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6 · The paper itself

Abstract

purposeThis study aimed primarily to establish a precise surgical anatomical guide for masseteric-to-facial nerve (MN-FN) anastomosis using reproducible anatomical landmarks. The secondary objective was to identify novel and reliable landmarks to facilitate the localization and dissection of the masseteric nerve (MN) during facial reanimation procedures.

methodsA cadaveric study was performed on 22 hemifaces from 11 formalin-fixed cadavers. Standardized preauricular and temporal scalp incisions were used to expose the facial nerve (FN) and identify the MN. Distances from the tragus, zygomatic arch, and relevant bony landmarks to the MN were measured. Angles and depths were recorded bilaterally. Statistical analyses included Wilcoxon signed-rank test (p < 0.05).

resultsFor the primary objective, the MN was consistently located deep to the zygomatic arch, at a mean distance of 2.6 ± 0.4 cm anterior to the tragus and a mean depth of 1.2 ± 0.3 cm. The trajectory formed an average angle of 52.1 ± 6.2° with the zygomatic arch. These parameters were symmetrical bilaterally (p > 0.05), confirming their reproducibility. For the secondary objective, we identified a new "subzygomatic triangle" bordered by the zygomatic arch, posterior masseter border, and condylar neck. The MN was reliably found within this triangle in all specimens (12/12, 100%), with significantly reduced depth variability compared to standard techniques (p = 0.018).

conclusionThis study defines reproducible anatomical references and introduces a novel landmark to enhance the safety and precision of MN-FN anastomosis in facial reanimation surgery.

Indexed as

Anatomic LandmarksFacial NerveFacial ParalysisMasseter MuscleNerve TransferAnastomosis, SurgicalCadaverFemaleHumansMaleCadaveric dissectionFacial nerve reanimationFacial paralysisMasseteric nerveMasseteric-to-facial nerve anastomosisSubzygomatic triangle

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.