[Ender nailing--an attempt at determining the position].

Fractures of the coxal end of the femur at first are strained by bending because of appearing compressive and tractional forces. Only second torsion and shearing forces have their effects on the feature of the fracture. In operative treatment of fractures near hip-joint this kind of implant is the best, which mostly is corresponding to the physiological flow of force, according to the anatomic conditions. The more a method brings these conditions, the earlier the fracture and with it the patient can be charged again. The Ender-nail largely fulfills these conditions by its axial position in the field of force and its elastic fixation in the femur shaft. We report about our own experiences in 346 cases using the Ender-nail.