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Pediatric laryngeal simulator using 3D printed models: A novel technique.
Katherine R Kavanagh1, Valerie Cote1, Yvonne Tsui2
1Department of Otolaryngology Head and Neck Surgery, Connecticut Children's Medical Center, Hartford, Connecticut, U.S.A.
The Laryngoscope
|October 13, 2016
Summary
A new silicone elastomer (SE) pediatric laryngeal model offers realistic tactile properties for otolaryngology (ENT) surgical simulation training. This low-cost, reproducible model enhances resident skill acquisition in airway procedures.
Area of Science:
- Medical Education
- Surgical Simulation
- Otolaryngology Training
Background:
- High-quality medical simulation models are crucial for developing surgical and nonsurgical technical skills.
- Existing pediatric laryngeal models may lack the necessary tactile fidelity and reproducibility for effective otolaryngology residency training.
Purpose of the Study:
- To develop and describe a practical, low-cost pediatric laryngeal model for otolaryngology residency training.
- To create a model with tactile properties mimicking human tissue and reliable reproducibility.
Main Methods:
- Developed pediatric laryngeal models using direct 3D printing (polylactic acid, acrylonitrile butadiene styrene, high-impact polystyrene) and casted models (silicone elastomer) from 3D-printed molds.
- Evaluated models based on anatomic accuracy, ease of manipulation, hardness, and production cost.
- Utilized a tissue likeness scale for validation and statistical analysis (Fleiss' Kappa, ANOVA) to assess interrater agreement and material differences.
Main Results:
- Silicone elastomer (SE) models demonstrated superior anatomical accuracy and tactile properties suitable for surgical manipulation.
- Direct 3D printing was more cost-effective but lacked the necessary material fidelity for surgical simulation.
- SE models provided better tissue likeness compared to directly printed materials.
Conclusions:
- Casted silicone elastomer models of the pediatric larynx offer high-quality anatomy and tactile properties comparable to human tissue.
- These models are easily manipulated with standard surgical instruments, providing a valuable training resource.
- The developed simulation system is reliable, low-cost, accessible, and modular for otolaryngology residents.
