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[Gel and porous polyethylene implants in the rabbit anophthalmic cavity]. / Implantes de polietileno gel e poroso em cavidade anoftálmica de coelhos.
Ferraz, Lucieni Cristina Barbarini; Schellini, Silvana Artioli; Wludarski, Sheila Lordelo; Padovani, Carlos Roberto.
Afiliação
  • Ferraz LC; Faculdade de Medicina, Universidade Estadual Paulista Julio Mesquita Filho, Botucatu, SP, Brazil.
Arq Bras Oftalmol ; 69(3): 305-8, 2006.
Article em Pt | MEDLINE | ID: mdl-16936949
PURPOSE: To evaluate porous polyethylene implants as compared to solid and gel spheres in anophthalmic cavities. METHODS: Thirty-six white rabbits underwent a right eye enucleation with placement of 12 mm of porous (18 animals) or gel (18 animals) polyethylene spheres. The animals were submitted to weekly clinical evaluation. Ultrasound examinations were done 30, 60 and 90 days after surgery and the animals were sacrificed on the day 90th. Then, the orbit content was removed and submitted to light microscopy. RESULTS: Five animals (27.2%) which received porous polyethylene spheres presented sphere extrusion. With the gel polyethylene spheres, the extrusions happened in 94.4% of the animals and it was observed that the expelled gel spheres had higher diameter then the implanted ones. Ultrasound evaluation showed that the porous polyethylene implant becomes vascularized but the gel not, as confirmed by histological examination. CONCLUSION: Spheres of material in the gel state hydrate and increase in volume making it necessary to know the final size before the implantation. Ultrasound examination allows the evaluation of the implant-tissue integration.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Polietilenos / Reação a Corpo Estranho / Implantes Orbitários / Géis Tipo de estudo: Diagnostic_studies Limite: Animals Idioma: Pt Revista: Arq Bras Oftalmol Ano de publicação: 2006 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Polietilenos / Reação a Corpo Estranho / Implantes Orbitários / Géis Tipo de estudo: Diagnostic_studies Limite: Animals Idioma: Pt Revista: Arq Bras Oftalmol Ano de publicação: 2006 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil