Fig. 6.

FFP type IVb. This 67-year-old patient presented 10 months after a fall suffering from groin pain and pain projecting in both legs as well as a peroneal lesion on the left side, she was treated conservatively. She had bilateral pseudarthrosis of the sacrum and the left pubic rami with intrusion of the sacrum into the pelvic ring (a, b). Open debridement was performed in all pseudarthrosis with application of iliac bone graft. The posterior instabilities were addressed with a trans-sacral bar and an additional SI-screw on both sides through S1. Anteriorly, symphysiodesis was performed with bone graft and a double-plate osteosynthesis (c). Follow-up at 2 years showed consolidation (d). Mobilization was unlimited and without pain