Abstract
Twenty-five long-bone nonunions were stabilized until healing with a dynamic axial fixator (DAF). Seventeen cases were culture positive and ten had open draining wounds. Five cases had segmental gaps larger than 3 cm. In addition to the DAF, infected atrophic cases received debridement, coverage, and bone graft. Cases with segmental gaps were usually treated with massive posterolateral grafts to create a tibiofibular synostosis. Hypertrophic cases received only compression and weight bearing. Bone grafts were performed in 14 cases. The DAF was usually removed after 16-24 weeks of treatment. Twenty of the twenty-five cases were healed at DAF removal and required no further intervention. Nine of the ten hypertrophic cases healed in an average of 18.1 weeks without graft. Thirteen of 15 atrophic cases were bone grafted. Cases with segmental gaps larger than 3 cm were treated with prolonged external fixation to protect maturing grafts, but were still subject to stress fracture after fixator removal.
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