A 19-year-old man who had infected tibia nonunion. (A) This is a 19-year-old man who had infected tibia nonunion with soft tissue defected and foot drop. (B) It shows the picture in operation. (C) Debridement of the site of infected nonunion with 4-cm bone defects and corticotomy of tibia. (D) Two weeks after operation with bone transport. (E) Four weeks after operation with bone transport. (F) Six weeks after operation, bone ends contacted with each other at the docking site and the regenerated bone had begun to be mineralized. (G) Three months after operation, foot drop was corrected and the frame of foot was removed. (H) Five months after operation, good consolidation of the regenerate and complete bone union at the docking site was presented. (I) Seven months after operation, it shows complete bone union, and the apparatus was removed.