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A Novel Temporal Bone Simulation Model Using 3D Printing Techniques.

Sarah E Mowry1, Hachem Jammal, Charles Myer

  • 1*Department of Otolaryngology, Georgia Regents University, Augusta, Georgia †Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, and Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, U.S.A.

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|September 17, 2015
PubMed
Summary

An inexpensive 3D-printed temporal bone model offers a realistic and haptic training experience for surgeons. This low-cost, reproducible model can be created using consumer-grade 3D printers, making it accessible for temporal bone dissection laboratories.

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Area of Science:

  • Biomedical Engineering
  • Surgical Simulation
  • Medical Education Technology

Background:

  • Existing simulated temporal bone models often rely on expensive commercial-grade 3D printers and materials.
  • There is a need for cost-effective and accessible training tools for temporal bone surgery.

Purpose of the Study:

  • To develop an inexpensive simulated temporal bone model using a consumer-grade 3D printer.
  • To replicate the visual and haptic fidelity of human cadaveric temporal bones for surgical training.

Main Methods:

  • High-resolution CT images of a temporal bone were converted to stereolithography (STL) files.
  • Temporal bone models were printed using acrylonitrile butadiene styrene (ABS) filament on a MakerBot 2x 3D printer.
  • Seven expert surgeons evaluated the model's haptic feedback and anatomical accuracy compared to cadavers.

Main Results:

  • The 3D-printed temporal bone model was accurately perceived by expert surgeons.
  • The model was considered a valuable training tool for junior residents and for simulating complex surgical anatomy.
  • The material cost for each model was remarkably low, at $1.92.

Conclusions:

  • A realistic, affordable, and easily reproducible temporal bone model can be successfully created using a consumer-grade desktop 3D printer.
  • This technology provides a significant advancement in accessible surgical simulation for otologic procedures.