He's listed in the doctor's section. He quotes 9000 Euros, or something along those lines, for either femur or tibia with his external fixator. You can find his fixation videos on youtube. It looks quite comfortable and strong. I know as a doctor, he is heavily involved in the university in Serbia and seems to have good relationships with the international orthopaedic community. I can't personally attest to his reputation, but I know there have been instances of people who succeeded with him. I think Ant and Jungle were the main two, but again, not quite sure...