We developed a pig model to study how different tissue flaps support the healing microenvironment of lower-leg composite defects. By measuring tissue metabolism and examining tissue samples under the microscope, we found distinct early responses between muscle and fascia-based flaps. This model may help researchers and clinicians better understand the healing of complex bone and soft-tissue defects and may provide a platform for evaluating clinically relevant ortho-plastic outcomes.

In recent decades, there has been a growing emphasis on the use of local antibiotics in orthopaedic surgery, but development of new technologies has been limited. In this study we observe that a 1.5 mL injection of the novel technology CarboCell G/C into the bone provides very high levels of the antibiotics gentamicin and clindamycin in bones, with almost no spill to the bloodstream. These findings bolster the prospect of new and improved technologies for combatting orthopaedic infections.

To improve the existing knowledge and treatment of bone and joint infections, it is essential to unite medical disciplines and bridge the gap between basic and clinical sciences. In 2018, the Centrum fOr translational Medicine on Bone and joint INfEctions (COMBINE) was created to facilitate collaboration among Danish scientists and researchers dedicated to bone and joint infection research. This paper aims to share the COMBINE approach and values.

In order to monitor pin site infections, facilitate communication between team members, and assist treatment decision-making, we aimed to develop a registration tool. The present pilot study evaluates the feasibility of a prospective registration procedure for reporting, evaluating, and monitoring of pin site infections in 39 trauma, limb deformity, and bone infection patients with external ring fixation.

To evaluate bone and tissue concentrations following intraosseous vancomycin administration, eight pigs were injected with 500 mg vancomycin into the tibia followed by a 12 h sampling period. This provided high concentrations in the tibia bone nearby the injection site the entire period, though with a wide range of peak concentration. The systemic absorption was high and immediate, thus mirroring an intravenous administration. Low mean concentrations were found in adjacent tissue compartments.