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ASOHNS ASM 2026
Facial nerve reanimation using masseter nerve and digastric muscle transfer: A case report
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Institution: Te Whatu Ora Waikato - Waikato, Aotearoa New Zealand

Aim: Facial paralysis can be debilitating and symmetrical facial muscle function is important for social interaction. I would like to present a case of right facial reanimation performed in Waikato Hospital. Methodology :This patient is a 76 year old gentleman who had severe Ramsay Hunt syndrome confirmed and had facial reanimation done 8 months later (June 2025).He presented in early October 2024 for complete right facial weakness, reduced hearing on the right, unsteady gait and vertigo. He went to have MRI scan a month later (November 2024), which confirmed post-contrast abnormal enhancement of the right facial nerve in its cisternal, meatus, geniculate ganglion, horizontal/tympanic and mastoid segments. In IAMs, there was also enhancement of the right superior vestibular and cochlea nerves. We discussed facial reanimation with the patient. It would involve a nerve to masseter transfer to his lower division of the facial nerve. We also proposed anterior digastric muscle transfer for lower lip marginal mandibular function. Other option is to leave the nerve to masseter neuroma regeneration to see if he will recover for the marginal mandibular nerve deformity. Results The patient was discharged postoperative day 1 and was seen by neurosurgery team for follow up. Six week follow up demonstrated near symmetry of the right face and 2/3 complete eye closure. Patient was satisfied with the overall appearance. Conclusion Masseter nerve is favourable for facial reanimation due to its ease of dissection, close proximity to facial nerve and rapid functional recovery (1). In this case, our patient will have additionally a brow lift on the right side with gold weight insertion for the upper lid and lateral tarsorrhaphy to improve his eye appearance. References: (1) Park, H., Jeong, S. S., & Oh, T. S. (2020). Masseter nerve-based facial palsy reconstruction. Archives of Craniofacial Surgery, 21(6), 337–344. https://doi.org/10.7181/acfs.2020.00682
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Dr Novell Shu Chyng Teoh - , Dr Amr Elassy -