Developing a production workflow for 3D-printed temporal bone surgical simulators

Author:

Ang Andre Jing YuenORCID,Chee Shu Ping,Tang Joyce Zhi EnORCID,Chan Ching YeeORCID,Tan Vanessa Yee JueenORCID,Lee Jordan Adele,Schrepfer ThomasORCID,Ahamed Noor Mohamed Nisar,Tan Mark BangweiORCID

Abstract

Abstract Introduction 3D-printed temporal bone models enable the training and rehearsal of complex otological procedures. To date, there has been no consolidation of the literature regarding the developmental process of 3D-printed temporal bone models. A brief review of the current literature shows that many of the key surgical landmarks of the temporal bone are poorly represented in models. This study aims to propose a novel design and production workflow to produce high-fidelity 3D-printed temporal bone models for surgical simulation. Methods Developmental phases for data extraction, 3D segmentation and Computer Aided Design (CAD), and fabrication are outlined. The design and fabrication considerations for key anatomical regions, such as the mastoid air cells and course of the facial nerve, are expounded on with the associated strategy and design methods employed. To validate the model, radiological measurements were compared and a senior otolaryngologist performed various surgical procedures on the model. Results Measurements between the original scans and scans of the model demonstrate sub-millimetre accuracy of the model. Assessment by the senior otologist found that the model was satisfactory in simulating multiple surgical procedures. Conclusion This study offers a systematic method for creating accurate 3D-printed temporal bone models for surgical training. Results show high accuracy and effectiveness in simulating surgical procedures, promising improved training and patient outcomes.

Funder

Joint Office of Academic Medicine, Singhealth-Duke-NUS Academic Medical Centre, Singapore

Publisher

Springer Science and Business Media LLC

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