Kehrer, Andreas and Engelmann, Simon and Knoedler, Leonard and Klein, Silvan M. and Anker, Alexandra M. and Heidekrueger, Paul and Tamm, Ernst and Bleys, Ronald L. A. W. and Prantl, Lukas and Ruewe, Marc (2024) The masseteric nerve for facial reanimation: Macroscopic and histomorphometric characteristics in 106 human cadavers and comparison of axonal ratio with recipient nerves. JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY, 52 (1). pp. 8-13. ISSN 1010-5182, 1878-4119
Full text not available from this repository. (Request a copy)Abstract
Peripheral facial palsy causes severe impairments. Sufficient axonal load is critical for adequate functional outcomes in reanimation procedures. The aim of our study was to attain a better understanding of the anatomy of the masseteric nerve as a donor, in order to optimize neurotization procedures. Biopsies were obtained from 106 hemifaces of fresh frozen human cadavers. Histological cross -sections were fixed, stained with PPD, and digitized. Histomorphometry and a validated software -based axon quantification were conducted. Of the 154 evaluated branches, 74 specimens were of the main trunk (MT), 40 of the anterior branch (AB), and 38 of the descending branch (DB), while two halves of one cadaver featured an additional branch. The MT showed a diameter of 1.4 +/- 0.41 mm (n = 74) with 2213 +/- 957 axons (n = 55). The AB diameter was 0.9 +/- 0.33 mm (n = 40) with 725 +/- 714 axons (n = 30). The DB diameter was 1.15 +/- 0.34 mm (n = 380) with 1562 +/- 926 axons (n = 30). The DB demonstrated a high axonal capacity - valuable for nerve transfers or muscle transplants. Our findings should facilitate a balanced selection of axonal load, and are potentially helpful in achieving more predictable results while preserving masseter muscle function.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CROSS-FACE NERVE; MOTOR-NERVE; MUSCLE TRANSFER; DYNAMIC REANIMATION; PARALYSIS; TRANSPLANTATION; RECONSTRUCTION; ANATOMY; DONOR; GRAFT; Masseteric nerve; Axon; Facial nerve; Anatomy; Facial paralysis; Facial palsy |
| 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: | 28 Jul 2025 08:15 |
| Last Modified: | 28 Jul 2025 08:15 |
| URI: | https://pred.uni-regensburg.de/id/eprint/63812 |
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