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Related Experiment Video

Updated: Jan 17, 2026

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Development of a 3D-Printed Hybrid Simulation Model for Transnasal Flexible Endoscopy Using Cadaveric Laryngeal

David Hortobagyi1,2,3, Yuki Tanigami1, Andrew Bowen4

  • 1Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.

The Annals of Otology, Rhinology, and Laryngology
|September 24, 2025
PubMed
Summary

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Diagnosis and Treatment of Refractory Chronic Cough: An American Broncho-Esophagological Association Expert Consensus Statement.

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Bronchial Mucosal Abnormalities in Idiopathic Subglottic Stenosis.

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Internal Superior Laryngeal Nerve Injections Through the Piriform Sinus for Laryngeal Neurosensory Disturbances: A Prospective Analysis.

The Annals of otology, rhinology, and laryngology·2025

This study introduces the first simulation model for transnasal endoscopic laryngology training. The affordable, anatomically accurate hybrid model offers realistic scope maneuverability for surgical education.

Area of Science:

  • Medical Simulation
  • Surgical Education
  • Laryngology

Background:

  • Transnasal endoscopic procedures are increasingly vital in laryngology.
  • A need exists for accurate simulation models for transnasal endoscopic laryngeal techniques.
  • Current training lacks dedicated, anatomically precise simulation tools.

Purpose of the Study:

  • To develop and evaluate a novel simulation model for transnasal endoscopic laryngology training.
  • To create a cost-effective and anatomically accurate training tool.
  • To assess the realism of scope maneuverability and anatomical representation.

Main Methods:

  • A 3D-printed anatomical framework was created using CT data.
  • Excised cadaveric larynges were integrated into the framework for realistic simulation.
Keywords:
hybridlaryngologyotolaryngologysimulation trainingspecialist training and educationtechnical skills trainingvideo laryngoscopy

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  • The model's anatomical realism and maneuverability were evaluated by experienced laryngologists using 8 cadaveric specimens.

    • Main Results:

    • Key laryngeal structures were clearly visualized, mimicking views in awake patients.
    • Endoscopic navigation through the nasal cavity and hypopharynx was realistic.
    • The model proved cost-efficient ($388.25) and reusable with interchangeable specimens.

    Conclusions:

    • The developed hybrid model is the first dedicated simulator for transnasal endoscopic laryngeal procedures.
    • It offers anatomical accuracy, realistic handling, and affordability for surgical training.
    • Potential applications include laryngology, anesthesiology, and pulmonology training.