NDLI: Morphological aspects of tympanic bulla after lateral osteotomy in cats

Content Provider	Scientific Electronic Library Online (SciELO)
Author	Silva, Adelina Maria da Souza, Wilson Machado de Carvalho, Roberto Gameiro de Machado, Gisele Fabrino Perri, Silvia Helena Venturoli
Abstract	PURPOSE: To evaluate tympanic bulla healing after experimental lateral osteotomy in cats. METHODS: Twenty adult cats were submitted to unilateral lateral bulla osteotomy and divided into two groups: cats of B1 group (n=10) were euthanized at 8 weeks and cats of B2 group (n=10), at 16 weeks postoperative. RESULTS: Oblique lateral radiographs taken immediately postoperative showed interruption in the contour of the external acoustic meatus of the operated bullae in all cats of both groups (McNemar test: p=0.0010). This feature was still observed in the radiographs taken after 8 and 16 weeks postoperative (McNemar test: B1 p=0.0020; B2 p=0.0312). Macroscopic examination showed that the operated bullae were similar to the normal ones, with preservation of the tympanic cavity. Connective tissue at the osteotomy site was significantly found in the operated bullae in both groups (McNemar test: B1 p=0.0020; B2 p=0.0010*). The length of connective tissue at the osteotomy site was measured by histomorphometry. There was no statistically significant difference between the values of B1 group and B2 group (Mann-Whitney test: p=0.0524). CONCLUSIONS: Experimental lateral osteotomy did not alter significantly the tympanic bulla conformation and complete regeneration of the tympanic bulla frequently did not occur before 16 weeks of postoperative period.
Related Links	http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0102-86502008000200014&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502008000200014&lng=en&nrm=iso
Starting Page	198
Ending Page	203
Page Count	6
File Format	PDF
ISSN	01028650
DOI	10.1590/S0102-86502008000200014
Journal	Acta Cirurgica Brasileira
Issue Number	2
Volume Number	23
Language	English
Publisher	Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
Publisher Date	2008-04-01
Publisher Institution	UNESP Department of Clinics, Surgery and Animal Reproduction UNESP Department of Biosciences, Production and Animal Health
Access Restriction	Open
Subject Keyword	Ear, middle Ear neoplasms Cats Ouvido médio Neoplasias do ouvido Gatos
Alternative Title	Aspectos morfológicos da bulla tympanica de gatos após osteotomia lateral
Content Type	Text
Resource Type	Article
Subject	Surgery

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