Kehrer, Andreas and Engelmann, Simon and Ruewe, Marc and Geis, Sebastian and Taeger, Christian and Kehrer, Michael and Prantl, Lukas and Tamm, Ernst and Bleys, Ronald R. L. A. W. and Mandlik, Veronika (2019) Anatomical study of the zygomatic and buccal branches of the facial nerve: Application to facial reanimation procedures. CLINICAL ANATOMY, 32 (4). pp. 480-488. ISSN 0897-3806, 1098-2353
Full text not available from this repository. (Request a copy)Abstract
The facial nerve is responsible for any facial expression channeling human emotions. Facial paralysis causes asymmetry, lagophthalmus, oral incontinence, and social limitations. Facial dynamics may be re-established with cross-face-nerve-grafts (CFNG). Our aim was to reappraise the zygomaticobuccal branch system relevant for facial reanimation surgery with respect to anastomoses and crossings. Dissection was performed on 106 facial halves of 53 fresh frozen cadavers. Study endpoints were quantity and relative thickness of branches, correlation to "Zuker's point", interconnection patterns and crossings. Level I and level II branches were classified as relevant for CFNG. Anastomoses and fusion patterns were assessed in both levels. The zygomatic branch showed 2.98 +/- 0.86 (range 2-5) twigs at level II and the buccal branch 3.45 +/- 0.96 (range 2-5), respectively. In the zygomatic system a single dominant branch was present in 50%, two co-dominant branches in 9% and three in 1%. In 66% of cases a single dominant buccal twig, two co-dominant in 12.6%, and three in 1% of cases were detected. The most inferior zygomatic branch was the most dominant branch (P = 0.003). Using Zuker's point, a facial nerve branch was found within 5 mm in all facial halves. Fusions were detected in 80% of specimens. Two different types of fusion patterns could be identified. Undercrossing of branches was found in 24% at levels I and II. Our study describes facial nerve branch systems relevant for facial reanimation surgery in a three-dimensional relationship of branches to each other. Clin. Anat. 32:480-488, 2019. (c) 2019 Wiley Periodicals, Inc.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | AXONAL LOAD; SURGICAL ANATOMY; PAROTID-GLAND; GRAFT; PALSY; REGENERATION; PATTERNS; facial nerve; facial muscles; anatomy; nerve transfer; axons; Bell's palsy; facial paralysis; transplants; facial expression |
| Subjects: | 500 Science > 570 Life sciences 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Plastische-, Hand- und Wiederherstellungschirurgie Biology, Preclinical Medicine > Institut für Anatomie Biology, Preclinical Medicine > Institut für Anatomie > Lehrstuhl für Humananatomie und Embryologie Biology, Preclinical Medicine > Institut für Anatomie > Lehrstuhl für Humananatomie und Embryologie > Prof. Dr. Ernst Tamm |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Apr 2020 07:13 |
| Last Modified: | 09 Apr 2020 07:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27093 |
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