The Role of Free-Tissue Transfers in Lower-Extremity Reconstruction

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Abstract
Eighty-five free flaps were performed in 76 patients for defects in the lower extremity. A new classification of lower-extremity defects was devised to help define the role of free-tissue transfers: group 1, soft-tissue defects; group 2, soft-tissue and bone loss less than 8 cm; group 3, massive soft-tissue and bone loss greater than 8 cm; and group 4, bone defect only. Each group was further divided into clean (A) and infected (B) wounds. Our overall results include resolution of the presenting problem in 82 percent; there were 17 flap losses (20 percent), persistent osteomyelitis in 8, and 10 amputations. This review has prompted us to limit our indications for limb salvage, particularly in group 3B, in patients with compound injuries that include loss of plantar sensation, and in patients with large segments of infected bone.

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