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A novel simulation module for segmental mandibulectomy and mandible reconstruction using 3D models
Aarti Agarwal1, Lauren Schlegel2, Michele Fiorella1
1Thomas Jefferson University Hospital, Department of Otolaryngology- Head & Neck Surgery, Philadelphia, PA, USA.
American Journal of Otolaryngology
|July 5, 2023
Summary
This study developed a 3D printed model simulation for surgical training in mandibular resection. The simulation significantly improved trainees' ability to plan accurate osteotomies and boosted confidence in surgical planning.
Area of Science:
- Head and Neck Surgery
- Surgical Education
- 3D Printing Technology
Background:
- Mandibular resection and reconstruction are complex head and neck surgeries.
- Adequate surgical margins are crucial for successful outcomes.
- Traditional training relies heavily on real-case experience, limiting structured learning.
Purpose of the Study:
- To develop and evaluate a novel simulation module for mandibular resection and reconstruction training.
- To assess the impact of 3D printed models on surgical planning accuracy.
- To improve trainee confidence and technical skills in head and neck procedures.
Main Methods:
- Developed 3D printed (3DP) mandibular models from patient imaging data with ameloblastoma.
- Otolaryngology trainees planned osteotomies before and after interacting with 3DP models.
- Assessed osteotomy margin adequacy and collected participant feedback via surveys.
Main Results:
- Surgical planning accuracy for clear margins improved from 65.3% to 92.3% after using 3DP models (p=0.001).
- 92% of participants found the simulation beneficial for planning and technical training.
- A majority reported increased confidence in conceptualizing lesion boundaries and ablation abilities.
Conclusions:
- A structured mandibulectomy simulation using 3D printed models effectively enhances trainee experience in segmental mandible resection.
- This simulation represents a novel approach to improving surgical training quality in head and neck procedures.
- 3D printed models offer a valuable tool for pre-operative planning and skill development.

