Abstract
ObjectiveThe influence of a low-level laser on the inflammatory response around rapid absorption sutures was assessed. Study designForty rats were divided into control and irradiated groups, which were further allocated into four subgroups. After transfixation and suturing, the irradiated group was subjected to laser therapy λ 670nm. Tissue sections were stained with hematoxylin–eosin, and the sutures were removed and analyzed by scanning electron microscopy. ResultsOn day 1, both groups exhibited mild to moderate inflammatory infiltration. On day 3, fractured suture filaments were observed in the laser group. On day 7, the laser group exhibited a significantly stronger foreign body reaction and filament integrity than did the control group (p=0.0476). On day 14, the filaments were fully dissolved in both groups. ConclusionsThe laser treatment increased the foreign body response in the tissue adjacent to the rapid absorption polyglactin 910 suture.
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