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Feasibility of ovine and synthetic temporal bone models for simulation training in endoscopic ear surgery

Published online by Cambridge University Press:  16 October 2019

S Okhovat ,
T D Milner  and
A Iyer
S Okhovat
Affiliation:
Department of Otolaryngology, Head and Neck Surgery, University Hospital Monklands, Airdrie, Scotland, UK
T D Milner*
Affiliation:
Department of Otolaryngology, Head and Neck Surgery, University Hospital Monklands, Airdrie, Scotland, UK
A Iyer
Affiliation:
Department of Otolaryngology, Head and Neck Surgery, University Hospital Monklands, Airdrie, Scotland, UK
*
Author for correspondence: Mr Thomas Milner, Department of Otolaryngology, Head and Neck Surgery, University Hospital Monklands, Monkscourt Ave, Airdrie ML6 0JS, Scotland, UK E-mail: [email protected]
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Abstract

Objective

Comparing the feasibility of ovine and synthetic temporal bones for simulating endoscopic ear surgery against the ‘gold standard’ of human cadaveric tissue.

Methods

A total of 10 candidates (5 trainees and 5 experts) performed endoscopic tympanoplasty on 3 models: Pettigrew temporal bones, ovine temporal bones and cadaveric temporal bones. Candidates completed a questionnaire assessing the face validity, global content validity and task-specific content validity of each model.

Results

Regarding ovine temporal bone validity, the median values were 4 (interquartile range = 4–4) for face validity, 4 (interquartile range = 4–4) for global content validity and 4 (interquartile range = 4–4) for task-specific content validity. For the Pettigrew temporal bone, the median values were 3.5 (interquartile range = 2.25–4) for face validity, 3 (interquartile range = 2.75–3) for global content validity and 3 (interquartile range = 2.5–3) for task-specific content validity. The ovine temporal bone was considered significantly superior to the Pettigrew temporal bone for the majority of validity categories assessed.

Conclusion

Tympanoplasty is feasible in both the ovine temporal bone and the Pettigrew temporal bone. However, the ovine model was a significantly more realistic simulation tool.

Keywords

EndoscopyEarSurgerySimulation TrainingTympanoplastyModelsAnimal
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 133 , Issue 11 , November 2019 , pp. 966 - 973
Copyright
Copyright © JLO (1984) Limited, 2019 

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Footnotes

Mr T Milner takes responsibility for the integrity of the content of the paper

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