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Effect of 3D-Printed Models on Cadaveric Dissection in Temporal Bone Training.

Andreas Frithioff1,2, Martin Frendø1,2,3, Kenneth Weiss4

  • 1Copenhagen Hearing and Balance Center, Department of Otorhinolaryngology-Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen, Denmark.

OTO Open
|December 20, 2021
PubMed
Summary

Training on 3D-printed temporal bones significantly improved mastoidectomy skills in residents compared to virtual reality simulation. These enhanced surgical skills transferred effectively to cadaveric dissections, supplementing traditional training methods.

Keywords:
3D printingadditive manufacturingeducationmastoidectomyneurotologyotologyrapid prototypingsurgical simulationtemporal bonetraining

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Area of Science:

  • Otorhinolaryngology
  • Surgical Education
  • Medical Simulation

Background:

  • Mastoidectomy is crucial for middle and inner ear diseases.
  • Limited cadaver access challenges surgical training.
  • Educational effectiveness of 3D-printed temporal bones for mastoidectomy is underexplored.

Purpose of the Study:

  • To evaluate if 3D-printed temporal bone training improves cadaveric mastoidectomy performance.
  • To compare 3D-printed training with virtual reality (VR) simulation for mastoidectomy skills acquisition.

Main Methods:

  • Prospective cohort study involving 18 otorhinolaryngology residents.
  • Intervention group received 3 hours of 3D-printed temporal bone mastoidectomy training.
  • Performance compared to a control group (66 residents) with time-equivalent VR training.

Main Results:

  • The 3D-printed training group showed a 29% improvement in cadaveric dissection performance (P < .001).
  • Skills acquired through 3D-printed models transferred to cadaveric performance.
  • Performance levels were modest (~50% of maximum score) across modalities.

Conclusions:

  • Training on 3D-printed temporal bones enhances mastoidectomy skills.
  • 3D-printed temporal bone training appears more effective than VR simulation.
  • 3D-printed models serve as a valuable supplement to cadaver training for mastoidectomy.