Multi-institutional Comparison of Temporal Bone Models: A Collaboration of the AAO-HNSF 3D-Printed Temporal Bone Working Group

Author:

Mowry Sarah E.1,Jabbour Noel2,Rose Austin S.3,Wiet Gregory J.4,Svrakic Maja5,Zopf David A.6,Vankoevering Kyle6,Powell Allison6,Freiser Monika E.2,Hochman Jordan7,Smith Richard8

Affiliation:

1. Department of Otolaryngology, University Hospitals and Case Western Reserve University School of Medicine, Cleveland, Ohio, USA

2. Department of Otolaryngology, University of Pittsburgh Eye and Ear Institute, Pittsburgh, Pennsylvania, USA

3. Department of Otolaryngology–Head and Neck Surgery, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA

4. Department of Otolaryngology–Head and Neck Surgery, Nationwide Children’s Hospital and The Ohio State University, Columbus, Ohio, USA

5. Department of Otolaryngology, Northwell Health, New Hyde Park, New York, USA

6. Department of Otolaryngology–Head and Neck Surgery, University of Michigan Health Systems, CS Mott Children’s Hospital, Ann Arbor, Michigan, USA

7. Department of Otolaryngology–Head and Neck Surgery, University of Manitoba, Winnipeg, Manitoba, Canada

8. Department of Otorhinolaryngology–Head and Neck Surgery, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York, USA

Abstract

Objective The American Academy of Otolaryngology–Head and Neck Surgery Foundation’s (AAO-HNSF’s) 3D-Printed Temporal Bone Working Group was formed with the goal of sharing information and experience relating to the development of 3D-printed temporal bone models. The group conducted a multi-institutional study to directly compare several recently developed models. Study Design Expert opinion survey. Setting Temporal bone laboratory. Methods The working group convened in 2018. The various methods in which 3D virtual models had been created and printed in physical form were then shared and recorded. This allowed for comparison of the advantages, disadvantages, and costs of each method. In addition, a drilling event was held during the October 2018 AAO-HNSF Annual Meeting. Each model was drilled and evaluated by attending-level working group members using an 15-question Likert scale questionnaire. The models were graded on anatomic accuracy as well as their suitability as a simulation of both cadaveric and operative temporal bone drilling. Results The models produced for this study demonstrate significant anatomic detail and a likeness to human cadaver specimens for drilling and dissection. Models printed in standard resin material with a stereolithography printer scored highest in the evaluation, though the margin of difference was negligible in several categories. Conclusion Simulated 3D temporal bones created through a number of printing methods have potential benefit in surgical training, preoperative simulation for challenging otologic cases, and the standardized testing of temporal bone surgical skills.

Funder

T32

Publisher

SAGE Publications

Subject

Otorhinolaryngology,Surgery

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