Anatomical study of the pigs temporal bone by microdissection

Anatomical study of the pigs temporal bone by microdissection

Author Garcia, Leandro de Borborema Autor UNIFESP Google Scholar
Andrade, José Santos Cruz de Autor UNIFESP Google Scholar
Testa, Jose Ricardo Gurgel Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract PURPOSE:Initial study of the pig`s temporal bone anatomy in order to enable a new experimental model in ear surgery.METHODS:Dissection of five temporal bones of Sus scrofa pigs obtained from UNIFESP - Surgical Skills Laboratory, removed with hole saw to avoid any injury and stored in formaldehyde 10% for better conservation. The microdissection in all five temporal bone had the following steps: inspection of the outer part, external canal and tympanic membrane microscopy, mastoidectomy, removal of external ear canal and tympanic membrane, inspection of ossicular chain and middle ear.RESULTS:Anatomically it is located at the same position than in humans. Some landmarks usually found in humans are missing. The tympanic membrane of the pig showed to be very similar to the human, separating the external and the middle ear. The middle ear`s appearance is very similar than in humans. The ossicular chain is almost exactly the same, as well as the facial nerve, showing the same relationship with the lateral semicircular canal.CONCLUSION:The temporal bone of the pigs can be used as an alternative for training in ear surgery, especially due the facility to find it and its similarity with temporal bone of the humans.
Keywords Models, Animal
Temporal Bone
Sus Scrofa
Ear Surgery
Language English
Date 2014-01-01
Published in Acta Cirurgica Brasileira. Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia, v. 29, p. 69-72, 2014.
ISSN 0102-8650 (Sherpa/Romeo, impact factor)
Publisher Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
Extent 69-72
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000342065000014
SciELO ID S0102-86502014001300014 (statistics in SciELO)

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