3-D-Printed Models for Temporal Bone Training: A Validity Study.

Autor:	Frithioff A, Frendø M, Weiss K; Department of Civil and Mechanical Engineering, Technical University of Denmark, Kgs. Lyngby., Foghsgaard S; Copenhagen Hearing and Balance Center, Dept. of Otorhinolaryngology-Head & Neck Surgery and Audiology, Rigshospitalet, Copenhagen, Denmark., Mikkelsen PT; Copenhagen Hearing and Balance Center, Dept. of Otorhinolaryngology-Head & Neck Surgery and Audiology, Rigshospitalet, Copenhagen, Denmark., Frederiksen TW; Department of Otorhinolaryngology-Head and Neck Surgery, Aarhus University Hospital, Aarhus, Denmark., Pedersen DB; Department of Civil and Mechanical Engineering, Technical University of Denmark, Kgs. Lyngby., Sørensen MS; Copenhagen Hearing and Balance Center, Dept. of Otorhinolaryngology-Head & Neck Surgery and Audiology, Rigshospitalet, Copenhagen, Denmark., Andersen SAW
Jazyk:	angličtina
Zdroj:	Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology [Otol Neurotol] 2023 Aug 01; Vol. 44 (7), pp. e497-e503.
DOI:	10.1097/MAO.0000000000003936
Abstrakt:	Objective: 3-D printing offers convenient and low-cost mastoidectomy training; nonetheless, training benefits using 3-D-printed temporal bones remain largely unexplored. In this study, we have collected validity evidence for a low-cost, 3-D-printed temporal bone for mastoidectomy training and established a credible pass/fail score for performance on the model. Study Design: A prospective educational study gathering validity evidence using Messick's validity framework. Setting: Seven Danish otorhinolaryngology training institutions. Participants: Eighteen otorhinolaryngology residents (novices) and 11 experienced otosurgeons (experts). Intervention: Residents and experienced otosurgeons each performed two to three anatomical mastoidectomies on a low-cost, 3-D-printed temporal bone model produced in-house. After drilling, mastoidectomy performances were rated by three blinded experts using a 25-item modified Welling scale (WS). Main Outcome Measure: Validity evidence using Messick's framework including reliability assessment applying both classical test theory and Generalizability theory. Results: Novices achieved a mean score of 13.9 points; experienced otosurgeons achieved 23.2 points. Using the contrasting groups method, we established a 21/25-point pass/fail level. The Generalizability coefficient was 0.91, and 75% of the score variance was attributable to participant performance, indicating a high level of assessment reliability. Subsequent D studies revealed that two raters rating one performance or one rater rating two performances were sufficiently reliable for high-stakes assessment. Conclusion: Validity evidence supports using a low-cost, 3-D-printed model for mastoidectomy training. The model can be printed in-house using consumer-grade 3-D printers and serves as an additional training tool in the temporal bone curriculum. For competency-based training, we established a cut-off score of 21 of 25 WS points using the contrasting groups method. Competing Interests: The authors disclose no conflicts of interest. (Copyright © 2023, Otology & Neurotology, Inc.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu