Figure 1.

(a) Anteroposterior and lateral radiographs of left knee of a 38-year-old man with type C3 open distal femur fracture, patella fracture and proximal tibial fracture on the left leg; initial treatment with external fixator and temporary vacuum assisted closure. (b) Anteroposterior and lateral X-rays show definitive treatment with LISS plate after conditioning of soft tissues. (c) Nonunion developed and was treated with re-osteosynthesis, and application of osteogenic protein 1 (OP1, bone morphogenetic protein-7 (rhBMP-7)), and cancellous bone that resulted in osseous union. The Patellar and upper tibial implants were removed