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80th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

20.05. - 24.05.2009, Rostock

The use of animals anatomy in ENT-education

Meeting Abstract

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  • corresponding author André Gurr - HNO-Universitätsklinik der Ruhr-Universität, Bochum, Germany
  • Amir Minovi - Ruhr-Universität, Bochum, Germany
  • Stefan Dazert - Ruhr-Universität, Bochum, Germany

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. 80th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. Rostock, 20.-24.05.2009. Düsseldorf: German Medical Science GMS Publishing House; 2009. Doc09hno047

DOI: 10.3205/09hno047, URN: urn:nbn:de:0183-09hno0477

Published: July 22, 2009

© 2009 Gurr et al.
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Outline

Text

Temporal bone preparation is indispensable for learning microsurgery on the ear. Unfortunately human biologics are difficult to achieve. Animals might be an alternative for training and learning anatomy. We want to show the similarities, as well as the differences between lamb, pig and the human temporal bone.

We analyzed temporal bones of the lamb and pig for their usability for ear surgical training. After a formaline fixation these ears were drilled and measured under typical surgical aspects. Components of the outer ear, the middle ear and the mastoid were compared to human.

We found especially in pig a completely different morphology with a very long external ear canal and massive bony structures. The lamb was smaller and more similar to human. The middle ears of both animals were very similar. The mastoid in pig and lamb is not pneumatized. In lamb cranial cells filled with fat are traceable. The labyrinth is to be found in a compact bony block. In pig a completely different appearance of the mastoid compared to human was seen.

Especially the middle ears of both animals seem to be usable for training ear surgery with the ossicular chain. The mastoidectomy is not a good alternative for teaching mastoid anatomy.