Fighting Bone Infections: How Local Antibiotics Could Revolutionise Joint and Fracture Care Bone fractures are a part of life. Whether due to a fall or an accident, many of us will experience a broken bone at least once in our lives. As we live longer and aim to stay active, joint replacements and other prosthetic devices are now essential tools that help us maintain our mobility and independence into our later years. These advances have transformed lives, allowing millions to enjoy pain-free movement and a higher quality of life. However, not everyone recovers smoothly after surgery to treat a fracture or a joint replacement. Sometimes, recovery is not just about healing the bone. Infections can sneak in, either from the initial injury, during surgery, or after surgery. For some, these infections become a painful, stubborn problem. They may cause persistent pain, swelling, or even require additional surgeries to replace the implanted material. Worse still, untreated infections can spread, leading to serious health risks and in rare cases even to amputation or death. Traditional infection treatments often involve high-dose antibiotics that circulate throughout the entire body. However, flooding the body with powerful drugs can be hard on organs, creating unwanted side effects that can weaken our overall health. What if, instead of treating the whole body for a local infection, we could focus our efforts right where the problem is? Imagine a farmer tending to a field. If just one plant shows signs of disease, treating that specific plant directly can protect the whole field without needing to spray every single crop. In the same way, local antibiotics can target the infection directly at the site, a bone or a joint, sparing the rest of the body unnecessary strain. In recent studies, using resorbable materials infused with antibiotics at the infection site–like calcium sulphate, which the body can break down naturally—has shown promising results. These local treatments deliver high doses of antibiotics right where they are needed, reducing the chances of infection spreading and lowering the risks of systemic side effects. They have even been shown to lower the likelihood of infection recurrence and reduce the need for additional surgeries. This targeted approach could be a game changer, helping patients heal faster and stay healthier while also addressing infections at their source. By refining such localised treatments, we move closer to a safer, more effective recovery for anyone facing a fracture or implant surgery, leading to healthier lives as we age.  Impact and relevance This thesis addresses infections following bone fracture and joint replacement surgeries, which can lead to chronic pain, repeat surgeries, or even amputation. Current treatments rely heavily on systemic antibiotics to control infection, but these can strain the body and cause significant side effects. This review investigates a local, targeted alternative: resorbable antibiotic carriers, like calcium sulphate, that deliver antibiotics directly to the infection site. This method could reduce or even eliminate the need for systemic antibiotics in the future, minimising strain on the body while lowering infection recurrence. The impact on patient care and society is significant—reduced infection rates resulting in fewer reoperations can lead to lower total healthcare costs. By enhancing the safety and effectiveness of infection treatments, this approach could improve patients’ quality of life, helping them recover with fewer complications as well as easing demands on healthcare systems. Author: Flo Van Eeckhoudt