Archives of Plastic Surgery

Korean Society of Plastic and Reconstructive Surgeons (대한성형외과학회)
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Facial reanimation with masseter nerve-innervated free gracilis muscle transfer in established facial palsy patients

  • Oh, Tae Suk (Department of Plastic Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Kim, Hyung Bae (Department of Plastic Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Choi, Jong Woo (Department of Plastic Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Jeong, Woo Shik (Department of Plastic Surgery, Asan Medical Center, University of Ulsan College of Medicine)
  • Received : 2018.06.17
  • Accepted : 2019.02.07
  • Published : 2019.03.31
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Abstract

Background The masseter nerve is a useful donor nerve for reconstruction in patients with established facial palsy, with numerous advantages including low morbidity, a strong motor impulse, high reliability, and fast reinnervation. In this study, we assessed the results of masseter nerve-innervated free gracilis muscle transfer in established facial palsy patients. Methods Ten patients with facial palsy who received treatment from January 2015 to January 2017 were enrolled in this study. Three patients received masseter nerve-only free gracilis transfer, and seven received double-innervated free gracilis transfer (masseter nerve and a cross-face nerve graft). Patients were evaluated using the Facial Assessment by Computer Evaluation software (FACEgram) to quantify oral commissure excursion and symmetry at rest and when smiling after muscle transfer. Results The mean time between surgery and initial movement was roughly 167.7 days. A statistically significant increase in excursion at rest and when smiling was seen after muscle transfer. There was a significant increase in the distance of oral commissure excursion at rest and when smiling. A statistically significant increase was observed in symmetry when smiling. Terzis' functional and aesthetic grading scores showed significant improvements postoperatively. Conclusions Masseter nerve innervation is a good option with many uses in in established facial palsy patients. For some conditions, it is the first-line treatment. Free gracilis muscle transfer using the masseter nerve has excellent results with good symmetry and an effective degree of recovery.

Keywords

References

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  2. Masseter nerve-based facial palsy reconstruction vol.21, pp.6, 2019, https://doi.org/10.7181/acfs.2020.00682
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  4. Repairing whole facial nerve defects with xenogeneic acellular nerve grafts in rhesus monkeys vol.17, pp.5, 2019, https://doi.org/10.4103/1673-5374.324853