Related Experiment Video
Updated: Sep 24, 2025
07:30
Learning Modern Laryngeal Surgery in a Dissection Laboratory
Published on: March 18, 2020
8.2K
Medialisation laryngoplasty with bone wax in a sheep model
Y Nachalon1,2, D J Cates1, N Nativ-Zeltzer1,2
1Department of Otolaryngology - Head and Neck Surgery, University of California, Davis, Sacramento, USA.
The Journal of Laryngology and Otology
|May 5, 2022
Summary
Bone wax shows promise as a safe implant for medialisation laryngoplasty in a sheep model. Histology confirmed good biocompatibility with minimal inflammation and no resorption after four weeks.
Area of Science:
- Otolaryngology
- Biomaterials Science
- Surgical Innovation
Background:
- Medialisation laryngoplasty aims to restore vocal fold function.
- Finding safe and effective implant materials is crucial for this procedure.
Purpose of the Study:
- To assess the safety and biocompatibility of bone wax as an implant for medialisation laryngoplasty.
- To evaluate bone wax in a large animal model.
Main Methods:
- Type I thyroplasty using bone wax was performed on three sheep.
- Animals were monitored for four weeks.
- Histological analysis of laryngeal tissues was conducted.
Main Results:
- Bone wax implantation (0.49 ± 0.12 g) resulted in no adverse events.
- High-speed imaging showed vocal fold vibration.
- Histology revealed minimal inflammatory infiltrate and a thin fibrotic capsule around the non-resorbed bone wax.
Conclusions:
- Bone wax appears to be a safe and effective material for medialisation laryngoplasty.
- Further long-term studies are needed to confirm its safety and efficacy.
