Bacteria-coated Metal Bone Implants Found to Promote Healing and Reduce Infections

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A team of researchers affiliated with several institutions in China has found that coating titanium bone implants with a thin film of Lactobacillus casei before implantation promoted healing and reduced infection risk in rats. In their paper published in the journal Science Advances, the group describes experiments they conducted on the effects of using L. casei on rats with broken tibias.

Prior research efforts have shown that the bacteria L. casei (commonly found in many cheeses and yogurts) can kill bacteria in living organisms, but it had never been used in the treatment of bone fractures. In this new effort, the researchers have found that the application of an L. casei biofilm to a titanium bone implant not only helped to prevent infections, but also promoted new bone growth.