Abstract
AbstractTemporal bone dissection plays an important role in the training of surgeons; however, they are difficult to obtain. AimTo develop a synthetic replica of the temporal bone for dissection training. Study DesignExperimental. Materials and MethodsAn acrylic synthetic resin replica was obtained from a human temporal bone. For the evaluation of the method, we selected five ear surgeons to dissect the model in a laboratory of experimental surgery. A questionnaire was filled, assessing external appearance, the simulation of procedures (placement of ventilation tube, mastoidectomy, decompression of the facial nerve and translabyrinthine access to the internal auditory canal) and their final conclusion. ResultsThe evaluation indicated satisfaction in using the model (80%), being more evident concerning the dissection of the mastoid segment of the facial nerve and translabyrinthine access to the internal auditory canal. The placement of a ventilation tube was reasonable for 60% and satisfactory for 40% of them. Mastoidectomy was satisfactory for 60% and fully satisfactory for 40%. ConclusionDissection in this simulator does not replace otologic training in cadaveric temporal bones. However, given the increasing difficulty in obtaining the latter, the development of new teaching tools should be encouraged to continuously improve surgeons.
Highlights
The use of cadavers for medical education and training started in 500 B.C. and its history evolved handin-hand with the development we have today in Medicine
The evaluation indicated satisfaction in using the model (80%), being more evident concerning the dissection of the mastoid segment of the facial nerve and translabyrinthine access to the internal auditory canal
This practice was prohibited because of religious and ethical issues; it was after the renascence that Leonardo da Vinci, Michelangelo and Andreas Vesalius consolidated human anatomy and dissection methods[1]
Summary
The use of cadavers for medical education and training started in 500 B.C. and its history evolved handin-hand with the development we have today in Medicine. For many years, this practice was prohibited because of religious and ethical issues; it was after the renascence that Leonardo da Vinci, Michelangelo and Andreas Vesalius consolidated human anatomy and dissection methods[1]. Training of surgical techniques in cadavers plays an important role in the education and enhancement of surgeons. The current Brazilian legislation, by means of law # 8,501 from November 30 of 1992, establishes that only those cadavers which remain unclaimed for 30 days can be used for research and educational purposes[2]. Training in temporal bone dissection laboratories is already routinely carried out for the learning of surgical anatomy and to train otolaryngologists, in accordance with the theories from Fitts and Posner for the training of motor skills[3]
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