Talk to Orthopedic Surgeon on Complicated Fracture

My father had an RTA six months ago, fracturing both femurs. The left one was worse( type 4). The surgeon whom we first consulted screwed up, applied cerclage and unlocked dynamic nail on L, while a plate and dynamic nail on R. The left femur got infected with E. coli that didn’t respond to 5 months of culture specific antibiotics. A month ago, another surgeon applied AIIN which was removed yesterday. The doctor says that there’s 8cm of necrosed bone fragment on the medial side. We are quite troubled and want expert opinion on the issue