A Comparison of Processing Properties of Anatomic Facsimile Models (AFM) of the Temporal Bone with Original Human Bone Structures

Hahne, Cornelia; Scheffler, Michael; Dietze, Gabriele; Döring, J.; Klink, Fabian; Vorwerk, Ulrich

doi:10.1002/adem.201600033

Cited by 2 publications

(3 citation statements)

References 21 publications

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“…The materials have different mechanical properties, costs, and accessibility as some materials require more advanced print facilities. Five studies evaluated material suitability for replication of the human temporal bone 5,6,10,26,31 by testing flexibility and drilling behavior 6,31 and through subjective comparison with cadaveric or real-life temporal bones. 5,10,26 Three of these studies found resin well suited, 5,26,31 but a specific conclusion on which material is superior cannot be made (see Suppl.…”

Section: Resultsmentioning

confidence: 99%

“…Five studies evaluated material suitability for replication of the human temporal bone 5,6,10,26,31 by testing flexibility and drilling behavior 6,31 and through subjective comparison with cadaveric or real-life temporal bones. 5,10,26 Three of these studies found resin well suited, 5,26,31 but a specific conclusion on which material is superior cannot be made (see Suppl. Tables S1 and S2 in the online version of the article).…”

Section: Resultsmentioning

confidence: 99%

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3D‐Printed Models for Temporal Bone Surgical Training: A Systematic Review

Frithioff

Frendø

Pedersen

et al. 2021

Otolaryngol.--head neck surg.

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Objective 3D-printed models hold great potential for temporal bone surgical training as a supplement to cadaveric dissection. Nevertheless, critical knowledge on manufacturing remains scattered, and little is known about whether use of these models improves surgical performance. This systematic review aims to explore (1) methods used for manufacturing and (2) how educational evidence supports using 3D-printed temporal bone models. Data Sources PubMed, Embase, the Cochrane Library, and Web of Science. Review Methods Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, relevant studies were identified and data on manufacturing and validation and/or training extracted by 2 reviewers. Quality assessment was performed using the Medical Education Research Study Quality Instrument tool; educational outcomes were determined according to Kirkpatrick’s model. Results The search yielded 595 studies; 36 studies were found eligible and included for analysis. The described 3D-printed models were based on computed tomography scans from patients or cadavers. Processing included manual segmentation of key structures such as the facial nerve; postprocessing, for example, consisted of removal of print material inside the model. Overall, educational quality was low, and most studies evaluated their models using only expert and/or trainee opinion (ie, Kirkpatrick level 1). Most studies reported positive attitudes toward the models and their potential for training. Conclusion Manufacturing and use of 3D-printed temporal bones for surgical training are widely reported in the literature. However, evidence to support their use and knowledge about both manufacturing and the effects on subsequent surgical performance are currently lacking. Therefore, stronger educational evidence and manufacturing knowhow are needed for widespread implementation of 3D-printed temporal bones in surgical curricula.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

3D‐Printed Models for Temporal Bone Surgical Training: A Systematic Review

Frithioff

Frendø

Pedersen

et al. 2021

Otolaryngol.--head neck surg.

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show abstract

“…Other studies have evaluated the most suitable material for replicating drilling of the bone [4,[15][16][17] and found resin to best mimic the hardness of the bone. However, this material requires using the more expensive photopolymerization printers and would increase the price per model, including the demand for manual post-processing as liquid residual material is entrapped in the mastoid air cells [12].…”

Section: Disagree Strongly Disagreementioning

confidence: 99%

3D-printing a cost-effective model for mastoidectomy training

et al. 2023

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Background 3D-printed temporal bone models can potentially provide a cost-effective alternative to cadaver surgery that can be manufactured locally at the training department. The objective of this study was to create a cost-effective 3D-printed model suitable for mastoidectomy training using entry level and commercially available print technologies, enabling individuals, without prior experience on 3D-printing, to manufacture their own models for basic temporal bone training. Methods Expert technical professionals and an experienced otosurgeon identified the best material for replicating the temporal bone and created a cost-effective printing routine for the model using entry-level print technologies. Eleven participants at a temporal bone dissection course evaluated the model using a questionnaire. Results The 3D-printed temporal bone model was printed using a material extrusion 3D-printer with a heat resistant filament, reducing melting during drilling. After printing, a few simple post-processing steps were designed to replicate the dura, sigmoid sinus and facial nerve. Modifying the 3D-printer by installing a direct-drive and ruby nozzle resulted in more successful prints and less need for maintenance. Upon evaluation by otorhinolaryngology trainees, unanimous feedback was that the model provided a good introduction to the mastoidectomy procedure, and supplementing practice to cadaveric temporal bones. Conclusion In-house production of a cost-effective 3D-printed model for temporal bone training is feasible and enables training institutions to manufacture their own models. Further, this work demonstrates the feasibility of creating new temporal bone models with anatomical variation to provide ample training opportunity.

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A Comparison of Processing Properties of Anatomic Facsimile Models (AFM) of the Temporal Bone with Original Human Bone Structures

Cited by 2 publications

References 21 publications

3D‐Printed Models for Temporal Bone Surgical Training: A Systematic Review

3D‐Printed Models for Temporal Bone Surgical Training: A Systematic Review

3D-printing a cost-effective model for mastoidectomy training

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