• Institute of Orthopedic Trauma, 920th Hospital of Joint Logistic Support Force of Chinese PLA, Kunming Yunnan, 650032, P. R. China;
XU Yongqing, Email: xuyongqingkm@163.net
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Severe limb injuries are multi-tissue damage caused by high-energy trauma, directly threatening the survival of the limb and the patient’s life. Their treatment is a major challenge in the field of trauma orthopedics. The core of treatment lies in the comprehensive assessment by a multidisciplinary team, followed by making a scientific decision on limb preservation. In terms of repair and reconstruction strategies, the timing of soft tissue coverage is crucial. Delayed primary flap repair (3-7 days after injury) has become the mainstream choice. It is performed after multiple debridements to ensure the cleanliness of the wound, significantly improving the success rate of flaps and reducing the risk of infection. The fixation method for fractures needs to be dynamically decided: external fixation frames are key for damage control and temporary fixation, creating conditions for soft tissue recovery; when the conditions are mature, they can be replaced with intramedullary nails or plates, etc., to achieve strong and stable fixation. For complex cases with severe contamination or infection, treatment needs to be carried out in stages: after thorough debridement in the initial stage, local sustained-release antibacterial therapy with antibiotics such as vancomycin bone cement can be applied, combined with closed negative pressure drainage technology for wound management. The final treatment can be external; for large bone defects, induced membrane technology or bone transportation technology can be used for repair. In addition, emerging infection prevention methods such as recombinant Staphylococcus aureus vaccines, and bone defect repair technologies such as three-dimensional printing personalized prostheses, show promising application prospects.

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