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Validation of a 3D-Printed Multimaterial Transcanal Tympanoplasty Simulator for Endoscopic Ear Surgery
Stéphanie Rançon, Juliette Prebot1, Françoise Denoyelle
1PRIM 3D-3D Design and Printing Platform of Assistance Publique-Hôpitaux de Paris.
Summary
A new 3D-printed multimaterial tympanoplasty simulator shows promise for surgical training. This innovative tool achieved high validity scores, offering a valuable alternative to traditional methods for otologic procedures.
Area of Science:
- Medical Simulation
- Surgical Training
- Otology
Background:
- Traditional simulation models for total endoscopic ear surgery (TEES) have limitations.
- Developing advanced simulators is crucial for improving surgical learning curves.
Purpose of the Study:
- To establish face, content, and construct validity for a novel 3D-printed multimaterial transcanal tympanoplasty simulator.
- To assess the simulator's potential for surgical training and competency evaluation.
Main Methods:
- 3D printing of temporal bone tissues from CT scans using Polyjet multimaterial technology.
- Otolaryngology residents and experts performed myringoplasty on the simulator.
- Validity was assessed using Likert scales and comparison to cadaveric subjects.
Main Results:
- The simulator achieved acceptable face (6.3/7) and content validity scores (6.3/7).
- High construct validity was demonstrated, with scores significantly differing between experts, fellows, and residents (p=0.009).
- Participants found the simulator useful for training and competency evaluation, with satisfaction similar to cadaveric models.
Conclusions:
- The multimaterial tympanoplasty simulator meets acceptable validity standards.
- This simulator represents a significant advancement for otologic surgical simulation, extending beyond drilling to transcanal procedures like TEES.
