Traumatic osteomyelitis

Traumatic osteomyelitis mainly refers to osteomyelitis caused by direct contamination and infection of fractured ends or exposed areas such as firearm injuries, open fractures or open reduction and internal fixation. Its characteristic is that the infection is mainly limited to the fracture, and the nearby soft tissue also presents an acute suppurative inflammation state. Once the bones are contaminated and infections develop later, they are mostly chronic processes. Infected bone ends are prone to necrosis due to lack of periosteum and blood supply. Due to skin defects and swelling of the limbs, the soft tissue may be difficult to cover and the bones are exposed, which will worsen the process of necrosis. The soft-coated part of the bone can be gradually replaced by crawling, and the dead bone and living bone are gradually separated by the action of osteoclasts and proteolytic enzymes, and finally detached from the main bone and stored in the deep. Or be excreted.