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Evaluation of a temporal bone prototype by experts in otology

Published online by Cambridge University Press:  16 June 2014

M Chenebaux ,
E Lescanne ,
A Robier ,
S Kim  and
D Bakhos
M Chenebaux
Affiliation:
Department of Otolaryngology and Neck Surgery, University Hospital of Tours, Tours, France
E Lescanne
Affiliation:
Department of Otolaryngology and Neck Surgery, University Hospital of Tours, Tours, France Faculty of Medicine, University François Rabelais, Tours, France
A Robier
Affiliation:
Department of Otolaryngology and Neck Surgery, University Hospital of Tours, Tours, France Faculty of Medicine, University François Rabelais, Tours, France
S Kim
Affiliation:
Department of Otolaryngology and Neck Surgery, University Hospital of Tours, Tours, France
D Bakhos*
Affiliation:
Department of Otolaryngology and Neck Surgery, University Hospital of Tours, Tours, France Faculty of Medicine, University François Rabelais, Tours, France
*
Address for correspondence: Dr David Bakhos, Department of Otolaryngology and Neck Surgery, Faculty of Medicine, University François Rabelais, 2, Boulevard Tonnellé, 37000 Tours, France Fax: 0033 0247473600 E-mail: david.bakhos@univ-tours.fr
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Abstract

Background:

Inexperienced otologists require training on the temporal bone drilling process, prior to any surgical activity. The shortage of cadaveric temporal bones exerts pressure to create realistic physical prototypes. This paper describes the evaluation by otology experts of a specially developed temporal bone resin model.

Methods:

Computed tomography images were transformed into digital files, and anatomically identical right temporal bone models were created using stereolithography. These hand-painted resin prototypes were sent to 25 otologists, accompanied by a 20-item questionnaire.

Results:

Satisfaction rate was 92 per cent. The overall prototype score was 48.87 out of 60. Average scores were: 12.63 out of 15 for anatomy-morphology, 6.98 out of 9 for quality of drilling, 16.74 out of 21 for identification of anatomical elements and 7.41 out of 9 for stages of drilling. Limitations of the model included an excessively vivid facial nerve colour and difficulty in identifying the posterior semicircular canal. Disadvantages related to the thickness of the resin and its residues were identified.

Conclusion:

The prototype appears to provide an attractive solution to the shortage of cadaveric temporal bones. However, interest in the model for drilling technique training for inexperienced otologists has not yet been assessed.

Keywords

Temporal BoneTrainingSurgeryEvaluationOtology
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 128 , Issue 7 , July 2014 , pp. 586 - 590
Copyright
Copyright © JLO (1984) Limited 2014 

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