Fig. 4

The right index finger of a 56-year male patient was impaired by a roller machine, resulting in open fracture of the proximal phalanx with tendon, nerve, vessel, and soft tissue defects. A, Preoperative X-ray. B, After debridement, the proximal phalanx presented a segment defect, and cement shaped like the phalanx was used to fill the space. C, At 8 weeks postoperatively, the cement spacer was removed, and the bone graft was carved into a 2.0 cm ⋅ 1.2 cm ⋅ 1.0 cm cylindrical shape similar to the shape of the metacarpal. Two crossed Kirschner wires were used to fix the fracture. D, At eight weeks postoperatively, callus formation was observed. E, At 8 weeks postoperatively, bone graft union was observed without additional infection