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Three-dimensional modeling of the temporal bone for surgical training
David Bakhos1, Stéphane Velut, Alain Robier
1Service d'ORL et Chirurgie Cervico-Faciale, Tours, France. bakhos_d@med.univ-tours.fr
Summary
This study validates a 3D-printed artificial temporal bone (TB) model for surgical training. The stereolithography-based model accurately replicates cadaveric TB anatomy, proving effective for otologic surgical education and planning.
Area of Science:
- Otolaryngology
- Anatomical Modeling
- Surgical Simulation
Background:
- Mastering temporal bone (TB) anatomy requires extensive surgical and anatomical dissection.
- Surgical teaching initiatives significantly impact patient outcomes.
- The study aimed to validate an artificial TB model for surgical training and education.
Purpose of the Study:
- To investigate the validity of an artificial temporal bone (TB) model for surgical training.
- To assess the accuracy of 3D-printed TB models compared to cadaveric specimens.
- To evaluate the model's utility in planning middle ear prosthesis implantation.
Main Methods:
- High-resolution helical computed tomographic (CT) scans of cadaveric TBs were acquired.
- DICOM data were converted to .stl files for stereolithography-based prototyping.
- Validation involved CT analysis of anatomical relationships and simulated surgical procedures (otoendoscopy, drilling).
Main Results:
- Seven cadaveric TBs were used to create stereolithographic prototypes.
- Volume and distance measurements showed no significant differences between prototypes and cadaveric TBs.
- Simulated mastoid surgeries and implantable middle ear prosthesis placements were successfully performed on the models.
Conclusions:
- Stereolithography-generated temporal bone prototypes serve as effective anatomical models for surgical training.
- The artificial TB model is valuable for pre-operative planning, particularly for congenital ear anomalies and prosthesis implantation.
