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Evaluation of healing prosthetic materials polyester mesh resorbable film and collagen elastin matrix /polypropylene used in rabbits abdominal wall defects / Avaliação da cicatrização da tela de poliéster com lâmina absorvível e a tela de colágeno-elastina/polipropileno utilizadas no reparo de lesões da parede abdominal de coelhos
Schulz, Danielle Duck; Czeczko, Nicolau Gregori; Malafaia, Osvado; Schulz, Gustavo Justo; Czeczko, Leticia Elizabeth A; Garcia, Larissa Santin; Dietz, Ulrich Andreas.
  • Schulz, Danielle Duck; Evangelical Medical School. Surgery Post-Graduate Program. Curitiba. BR
  • Czeczko, Nicolau Gregori; Evangelical Medical School. Post-Graduate Program. Curitiba. BR
  • Malafaia, Osvado; Evangelical Medical School. Post-Graduate Program. Curitiba. BR
  • Schulz, Gustavo Justo; Evangelical Medical School. Surgery Post-Graduate Program. Curitiba. BR
  • Czeczko, Leticia Elizabeth A; Evangelical Faculty of Parana. Curitiba. BR
  • Garcia, Larissa Santin; Evangelical Faculty of Parana. Curitiba. BR
  • Dietz, Ulrich Andreas; Evangelical Medical School. Post-Graduate Program. Curitiba. BR
Acta cir. bras ; 24(6): 476-483, Nov.-Dec. 2009. ilus, tab
Article in English | LILACS | ID: lil-533210
ABSTRACT
PURPOSE: To compare polyester with absorbable layer prosthesis with collagen-elastin/polypropylene prosthesis in the repair of abdominal wall defects. METHODS: The 16 studied rabbits were divided in groups A and B (euthanized on the 30th and 60th days, after the implant of the mesh). The animals underwent laparotomy and received a 2cm wall "defect" on each side of the Alba linea. The repair was made with the suture of a polyester mesh with absorbable film on the left side of the Alba Linea and with collagen-elastin/polypropylene mesh on the right side. Adherences were classified according to Nair Score and microscopic evaluation observing types I and III collagen formation and other immunohistochemical analyses. RESULTS: There were no significant differences in adhesion formation. The collagen type I showed higher deposition in polyester with absorbable layer. In group B, the difference between the meshes was significant, with higher collagen III deposition in polyester with absorbable layer (60º P.O.). About the metalloproteinases, the presence of MMP -1 and MMP-8 were about the same; the expression of MMP-13 increased near to the 60th day. CONCLUSIONS: There is no significant difference between the two meshes in adhesion formation and immunohystochemical evaluation. The polyester mesh resorbable film presented a higher deposition of collagen.
RESUMO
OBJETIVO: Comparar a tela poliéster com lâmina absorvível e a confeccionada pela aposição da tela de colágeno-elastina/polipropileno no reparo de lesões da parede abdominal. MÉTODOS: Foram avaliados 16 coelhos, divididos aleatoriamente em dois grupos e submetidos a eutanásia no 30º e no 60º dia P.O. Os animais foram submetidos à laparotomia e confecção de dois defeitos triangulares de 2 cm, de espessura total, na parede abdominal ventral. A correção foi realizada através de fixação, na metade esquerda da linha alba, da tela de poliéster com lâmina absorvível e na direita, tela composta por colágeno-elastina/polipropileno. As aderências foram classificadas conforme o escore de Nair e a avaliação microscópica incluiu avaliação do colágeno (tipos I e III) e imunoistoquímica. RESULTADOS: Não houve diferença quanto à formação de aderências. O colágeno tipo I apresentou maior concentração com a tela Poliéster com lâmina absorvível. No grupo B foi encontrada diferença significativa entre as telas, com aumento do colágeno tipo III com a tela Poliéster com lâmina absorvível (60º P.O.). A avaliação das metaloproteinases MMP-1 e MMP-8 não apresentaram diferença significativa; a MMP-13 apresentou aumento significativo na imunoexpressão no 60º P.O. CONCLUSÕES: Não há diferença significativa entre as telas quanto às aderências e avaliação imunoistoquímica. A tela de poliéster com lâmina absorvível apresenta maior formação de colágeno.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Polyesters / Surgical Mesh / Wound Healing / Collagen / Elastin / Abdominal Wall Type of study: Prognostic study Limits: Animals Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: Evangelical Faculty of Parana/BR / Evangelical Medical School/BR

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Full text: Available Index: LILACS (Americas) Main subject: Polyesters / Surgical Mesh / Wound Healing / Collagen / Elastin / Abdominal Wall Type of study: Prognostic study Limits: Animals Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: Evangelical Faculty of Parana/BR / Evangelical Medical School/BR