학술논문

Ocular-oral synkinesis caused by partial injury of the zygomatic and buccal branches of the facial nerve after mid-face trauma.
Document Type
Academic Journal
Author
Jun D; Department of Plastic and Reconstructive Surgery, Hallym University College of Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong-si, South Korea.; Park IS; Department of Otorhinolaryngology, Hallym University College of Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong-si, South Korea.; Kim J; Department of Otorhinolaryngology, Hallym University College of Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong-si, South Korea. Electronic address: happyluna2846@gmail.com.
Source
Publisher: Elsevier Country of Publication: Netherlands NLM ID: 101264239 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-0539 (Electronic) Linking ISSN: 17486815 NLM ISO Abbreviation: J Plast Reconstr Aesthet Surg Subsets: MEDLINE
Subject
Language
English
Abstract
Background: Facial nerve paralysis induced by acute traumatic facial nerve injuries limited to the zygomatic and buccal branches shows unique complications, such as strong co-contractions of the lower facial muscles around the lips during voluntary blinking (ocular-oral synkinesis). We investigated the characteristics of facial complications after facial nerve injury in the mid-face area and reported the treatment results.
Methods: A total of 21 patients with facial nerve injuries to the zygomatic and/or buccal branches were evaluated for the degree of facial synkinesis and mouth asymmetry. Patients with mild-to-moderate symptoms were treated using physical rehabilitation therapy combined with botulinum toxin (Botox) injection, and patients with severe or uncontrolled symptoms were treated using surgical therapy.
Results: Initial/final mean synkinesis scores and mouth asymmetry degrees were 2.17/1.75 and 0.85/0.66 in the physical therapy group and 3.11/0.78 and 2.41/-0.31 in the surgery group, respectively. Physical therapy with Botox injection alone did not show significant improvements in synkinetic symptoms of the patients with mild-to-moderate synkinesis (p > 0.05), whereas surgical therapy resulted in significant improvements in synkinesis and mouth asymmetry (p < 0.05).
Conclusions: Surgical treatment is an effective adjustment procedure for the management of facial complications in patients with severe or uncontrolled synkinesis after facial nerve injury to the mid-face area.
(Copyright © 2023 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)