Bone fractures in left leg. With this!

Sir Suffered multiple bone fractures in left leg in an accident. Two major fractures one below knee joint and other above the ankle joint. A rod was inserted covering both fractures from knee to ankle with screws. The Dr. further declared that once the injury heals he would have to carry a surgery for bone graft as the gap in the lower fracture i.e. above the ankle won't be filled without a graft. We contacted other Dr for second opinion he outrightly rejected the entire procedure already done and advised to get the rod immediately removed with plates to be placed intead. He also told us that there would be no need of bone graft and the patient would recover with in two months. Now we are in dilemma as to who is right and whom to believe.please suggest X ray attached along with this