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Morphological aspects of tympanic bulla after ventral osteotomy in cats.
MedLine Citation:
PMID:  19503998     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
PURPOSE: To evaluate tympanic bulla healing after experimental ventral osteotomy in cats. METHODS: Twenty adult cats were submitted to unilateral ventral bulla osteotomy and divided into two groups: cats of A1 group (n=10) were euthanized at 8 weeks and cats of A2 group (n=10), at 16 weeks postoperative. RESULTS: Signs of Horner's syndrome or damage to the inner ear were not found. Open-mouth radiographs taken in the immediate postoperative showed interruption in the contour of the larger compartment of the operated bulla. The result of Mcnemar'test was significant in A2 group (*p=0.0156). Macroscopic exams revealed that the operated bullae were similar to the normal ones, with preservation of the tympanic cavity. Connective tissue at the osteotomy site of the larger compartment was significantly found in the operated bullae in both groups (McNemar test: A1 p=0.0020*; A2 p=0.0078*). Histomorphometric analyses showed that the connective tissue length at the osteotomy site was shorter in A2 group than in the A1 group (Mann-Whitney test: p=0.0021*). CONCLUSIONS: Experimental ventral osteotomy did not alter significantly the tympanic bulla conformation and complete regeneration of tympanic bulla frequently did not occur before 16 weeks of postoperative period.
Authors:
Adelina Maria da Silva; Wilson Machado de Souza; Roberto Gameiro de Carvalho; Gisele Fabrino Machado; Silvia Helena Venturoli Perri
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta cirúrgica brasileira / Sociedade Brasileira para Desenvolvimento Pesquisa em Cirurgia     Volume:  24     ISSN:  1678-2674     ISO Abbreviation:  Acta Cir Bras     Publication Date:    2009 May-Jun
Date Detail:
Created Date:  2009-06-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9103983     Medline TA:  Acta Cir Bras     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  177-82     Citation Subset:  IM    
Affiliation:
Department of Clinics, Surgery and Animal Reproduction, UNESP, Araçatuba, SP, Brazil. adelinasilva@uol.com.br
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