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Related Experiment Video

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Educational simulator for mastoidectomy considering mechanical properties using 3D printing and its usability

Junhyeok Ock1, Yeonjoo Choi2, Dong-Gyu Lee2

  • 1Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-Ro 43-Gil Songpa-Gu, Seoul, 05505, South Korea.

Scientific Reports
|April 1, 2024
PubMed
Summary

A novel 3D-printed mastoidectomy simulator offers realistic drilling feedback for surgical training. This cost-effective tool enhances surgeon skills and anatomical understanding, improving patient safety in complex temporal bone operations.

Keywords:
Computed tomography (CT)Educational simulatorInsertion torqueMastoidectomyMechanical propertiesShape accuracyThree-dimensional (3D) printing

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Area of Science:

  • Medical Simulation
  • 3D Printing in Medicine
  • Surgical Education

Background:

  • Complex temporal bone anatomy presents surgical challenges.
  • Current training methods are costly and ethically problematic.
  • Need for realistic, accessible surgical simulators.

Purpose of the Study:

  • To develop and evaluate a 3D-printed mastoidectomy simulator.
  • To replicate mechanical properties for realistic drilling feedback.
  • To enhance surgical training and anatomical comprehension.

Main Methods:

  • Modeled simulator on patient CT scans for anatomical accuracy.
  • Utilized 3D printing with variable infill for mechanical properties.
  • Assessed screw insertion torque and surgeon usability via questionnaire.

Main Results:

  • Simulator infill specimens showed comparable mechanical strength to cadaveric bone.
  • Screw insertion torque values mimicked real anatomical structures.
  • Otolaryngologists rated simulator quality and usability highly (4.25/5 and 4.53/5).

Conclusions:

  • The 3D-printed mastoidectomy simulator provides realistic bone drilling feedback.
  • It effectively reinforces surgical skills and anatomical knowledge.
  • Offers a viable, cost-effective solution for otolaryngology training.