Fig. 5

The left ring finger of a 29-year female patient was injured by a bar cutting machine, causing open injury of the distal interphalangeal joint and tendon, nerve, vessel, and soft tissue defects. A, Preoperative X-ray. B, Subsequent posttraumatic osteomyelitis. C, After the sinus and dead bone were removed, the defect was filled with antibiotic PMMA cement fabricated into a cylindrical shape similar to the shape of the phalanx. External fixation was achieved with four transverse and parallel Kirschner wires and additional cement to connect the Kirschner wires. D, At 8 weeks postoperatively, the cement spacer was removed, and the bone graft was carved into a 2.0 cm ⋅ 1.0 cm ⋅ 1.0 cm cylindrical shape similar to the shape of the phalanx. Two Kirschner wires were used to fix the fracture. Distal interphalangeal joint fusion was performed. E, At four weeks postoperatively, callus formation was observed. F, At 10 weeks postoperatively, bone graft union was observed without additional infection