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Fisioter. Bras ; 8(5): 313-316, set.-out. 2007.
Article in Portuguese | LILACS | ID: lil-491305

ABSTRACT

Com o objetivo de pesquisar os efeitos histológicos da irradiação laser de baixa intensidade na reparação óssea, selecionamos 10 ratos que foram submetidos à fratura de fêmur com fixação intramedular e distribuídos em dois grupos de igual número (grupos I e II). Os animais do grupo II foram submetidos à terapia laser Arseneto de Gálio (10 J/cm²) iniciada imediatamente após a cirurgia, totalizando nove sessões. Os animais foram sacrificados, para a análise histológica, com administração intraperitoneal de tiopental sódico no décimo, vigésimo e trigésimo dia após a cirurgia. Na avaliação histológica verificamos resultados positivos no grupo tratado.


The aim of the present study was to research the histological effects of low-power laser irradiation (LPLI) on fracture healing in rats. Ten Wistar male rats were subjected a femur bone fracture with internal fixation and divided into two groups of the same number (groups I and II). The group II was treated with laser AsGa (10 J/cm²), the laser therapy started after surgery, and had 9 sessions. The rats were sacrificed, for histological analysis, with thiopental sodium administration in the tenth, twentieth and thirtieth days after surgery. Histological analysis demonstrated positive results in the irradiation group compared with control group.


Subject(s)
Evaluation Study , Fracture Fixation , Histology , Lasers , Low-Level Light Therapy , Osteogenesis
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