Related Experiment Video
Updated: Jan 31, 2026

Endoscopic Cholesteatoma Surgery
Published on: January 19, 2022
Construct validity of a low-cost medium-fidelity endoscopic sinus surgery simulation model
Yuki Yoshiyasu1,2, Daniel R Chang1,2, Leon Bunegin2
1Department of Otolaryngology-Head and Neck Surgery, University of Texas Health Science Center at San Antonio, San Antonio, Texas, U.S.A.
Objective:
Assess construct validity of a low-cost medium-fidelity silicone injection molded model task trainer for endoscopic sinus surgery (ESS) training.
Methods:
Fellowship-trained rhinologists, otolaryngology attendings, and otolaryngology residents at various levels of training performed sinus endoscopy and seven procedures on the model. Construct validity was evaluated by comparing novice to various levels of experienced performance using a validated checklist.
Results:
Thirty-two subjects participated in this study. Otolaryngology attendings and postgraduate year (PGY) 3 to 5 otolaryngology residents significantly outperformed PGY 1 to 2 otolaryngology residents on most tasks in the task-specific checklist.
Conclusions:
This study demonstrated the construct validity of the low-cost medium-fidelity ESS model.
Level Of Evidence:
NA Laryngoscope, 129:1505-1509, 2019.
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