The study included 30 cases of infected tibial nonunion with a mean duration of infection of 6.7 months. The aim of the work was to assess the results of viable tissue transfer as a definite or auxiliary procedure in management of infected tibial nonunion. The reconstruction done was either a free flap (microvascular) in 20 cases, or a pedicled flap in 10 cases. Results were studied regarding union, subsidence of infection, graft hypertrophy and limb function. The overall union rate was 66.6%, and satisfactory functional results were obtained in 64% of cases.