CONICET | Buscador de Institutos y Recursos Humanos

This work studies the relationship between colony and biofilm formation of Staphylococcus aureus and the surface characteristics of the prostheses used for osteosynthesis. Specifically, the resistance to disinfection with antibiotic offered by bacteria developed in prostheses with different types of mechanical defects is analyzed. These defects may be the result of manufacture-related or surgery ?induced damage. A method was developed to verify the way in which the probes can conduct bacteria. In our lexicon conduction means that a probe can keep bacteria or bacterial colonies alive despite being subjected to the action of high concentration of antibiotic. The results of this work reveal that whereas the perfectly polished samples do not conduct bacteria and can be treated with antibiotics, the prostheses with defects or rough areas do and the antibiotic itself does not produce the desired effect.