One‐stage treatment of infected bone defects of the tibia with skin loss by free vascularized osteocutaneous grafts

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Abstract
Twenty-six patients who had an infected nonunion or segmental defect of the tibia with skin loss were treated in one stage with debridement and a free vascularized osteocutaneous fibula or iliac graft. Successful control of infection, closure of skin defects, and incorporation of bone union were achieved in all patients except one. In an average follow-up of 39 months, no recurrence of infection was seen. There were four stress fractures of the grafted fibula; these healed within 2 months with cast immobilization. Graft hypertrophy was common in the fibula grafts, but it took 1 1/2 years for hypertrophy of the graft to be strong enough to remove external supports without stress fracture or an additional cancellous bone graft. The use of a one-stage free vascularized osteocutanous graft for the management of infected bone defects of the tibia with skin loss is effective because extensive debridement can remove all devitalized and infected tissue and can increase vascularity in the region of infection and osseous defect to enhance antibiotic delivery.

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