Fig. 2

A male patient (28 years old) with bone nonunion in the right femur was treated with the staged method of the induced membrane technique (IMT), and a low-toxicity infection (coagulase-negative Staphylococcus spp.) was detected after surgery. A Preoperative radiographs showed less callus formation at the fracture site after initial osteosynthesis. B Debridement and bone gap filled with antibiotic bone cement. C–F Radiographs at 2, 6, 12, and 18 months after IMT treatment. Bone union was achieved at 12 months, and complete bone consolidation was achieved at 18 months