LOCAL GENTAMICIN DELIVERY FROM A THERMORESPONSIVE HYALURONAN HYDROGEL SUCCESSFULLY TREATS A CHRONIC IMPLANT-RELATED INFECTION IN A SINGLE-STAGE REVISION IN SHEEP
2018
Aim The treatment of chronic orthopedic device-related infection (ODRI) often requires multiple surgeries and prolonged antibiotic therapy. In a two-stage exchange procedure, the treatment protocol includes device removal and placement of an antibiotic-loaded bone cement spacer to achieve high local antibiotic concentrations. At the second stage, further surgery is required to remove the spacer and replace it with the definitive device. We have recently developed a thermo-responsive hyaluronan hydrogel (THH) that may be loaded with antibiotics and used as delivery system. Since the material is bio-resorbable, it does not require surgical removal and may therefore be suitable for use as treatment strategy in a single-stage exchange. This aim of this study was to evaluate gentamicin sulphate (Genta)-loaded THH (THH-Genta) for treating a chronic Staphylococcus aureus ODRI in sheep using a single-stage procedure. Methods Twelve Swiss-alpine sheep received an IM tibia nail and an inoculation of a gentamicin-se...
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