The invention relates to a material for topical treatment preventing sepsis and osteomyelitis following open bone lesions. According to the invention, the material consists of 10 antimicrobial therapeutical metal particles of Ag and Cu, respectively, having a diameter of 50 μ m or other therapeutical metal particles with a diameter of 1…4 mm with sphere shape or rounded edges, having antiseptic and nutritive effect on the bone due to the metallic ions released by the metal particles into the biological environment.