Navegando por Palavras-chave "Polidioxanone"

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    Estudo comparativo entre os fios de polidioxanona e poliamida na tenorrafia de coelhos
    (Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia, 2002-02-01) Silva, Roberto Antoniolli da [UNIFESP]; Fagundes, Djalma José [UNIFESP]; Antoniolli, Andréia Conceição Milan Brochado [UNIFESP]; Figueiredo, Arthur Silveira de [UNIFESP]; Cantero, Wilson de Barros [UNIFESP]; UFMS; Universidade Federal de São Paulo (UNIFESP)
    OBJECTIVE: comparative study between the mechanical properties of the tenorraphies with poliamida (nylon) and polidioxanone (PDS). METHODS: 56 adult, male, New Zealand rabbits were used, distributed in two groups and four sub groups: GIA-tenorraphies with polidioxanone and evaluation after two weeks; GIB-tenorraphies with polidioxanone and evaluation after four weeks; GIIA-tenorraphies with nylon and evaluation after two weeks; GIIB-tenorraphies with nylon and evaluation after four weeks. Traction tests were done in tenorraphies of the rabbits. RESULTS: after fifteen days nylon presented as results of the mechanical tests, superior values that the one of PDS for maximum load, rigidity coefficient, deformation, deformation in the proportionality limit, load in the proportionality limit, that were the variable analysed. CONCLUSION: after thirty days there was not significant difference between nylon and PDS.
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    Estudo morfológico da articulação do joelho de coelhos após a reparação de um defeito osteocondral
    (Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia, 2002-01-01) Inouye, Celso Massaschi; Fagundes, Djalma José [UNIFESP]; Faloppa, Flávio [UNIFESP]; Novo, Neil Ferreira [UNIFESP]; Juliano, Yara [UNIFESP]; Figueiredo, Arthur Silveira De; Taha, Murched Omar [UNIFESP]; Universidade Federal de Mato Grosso do Sul Departamento de Clínica Cirúrgica; Universidade Federal de São Paulo (UNIFESP); UFMS
    OBJECTIVE: To study the morphology in the rabbit's knee joint after the reparation of a defect in the osteochondral's standardized with suture wire polidioxanone, proceeded a criation of one osteochondral's defect in the medial condyle femoral in 80 rabbit's knees, albinos, males, aged between 5 and 8 months and weight between 2600 and 3000g. METHODS: The animals were distributed into 2 groups with following by 7 and 42 days and submitted to the technique A (resection and withdrawal of osteochondral's fragment in the medial condyle femoral and replacement with suture wire monofilament absorbable polidioxanone - PDX), technique B (resection and withdrawal of osteochondral's fragment in the medial condyle femoral and it is used as a autograft, after 180º rotation, in anteroposterior sense and synthesis in contralateral's knee with monofilament suture wire absorbable polidioxanone - PDX) or technique C (resection and withdrawal of osteochondral's fragment in the medial condyle femoral, leaving the standard defect empty in contralateral's knees in those which they were operated by techniques A or B) as control. RESULTS: They did clinical, radiographic, macroscopic and histological's studies in these 2 groups, showing the replacement of fragment or osteochondral's autograft, which facilities the perfect integration of fragment in the femoral condyle without shift or necrosis cartilaginous or osteal, in which knees were submitted by a simple resection of fragment, with following 42 days, there weren't cartilaginous formation in articular's surface having predispose to the osteophyte's formation, showing a significant relation between technique C and the presence of osteophytes. CONCLUSION: It comes to a conclusion that reconstitution of joint surface with replacement of fragment or osteochondral's graft fixed with suture wire PDX is feasible and it presented better result than a simple resection of the fragment.