Based on their group of 52 patients the authors analyze the complications they encountered in the treatment of crural fractures by a not predrilled intramedullary nail. Consistent with the literature they found that this method is successful in the treatment of closed and open fractures of the crural diaphysis. They mention, however, a relatively high percentage of complications which in the long run are not a impediment for healing of the fracture but influence it. In the discussion these complications are analyzed in detail in an attempt to find a solution and to avoid them in future patients. They conclude that even this relatively simple and effective method of fractures of the crural diaphysis has its pitfalls and its indication and implementation call for much attention.