A TECHNIQUE FOR PRODUCTION OF STANDARD SP IRAL FRACTURES OF THE TIBIAIN ANIMAL-EXPERIMENTS

A method for the deliberate weakening of cortical bone has been develo ped on the basis of an already established technique for creating butt erfly fractures. It enables one to create the same type of fracture, i .e., a spiral fracture, every time. The fracturing process is recorded as a force-strain curve. The results of the in vitro investigations f orm a basis for the preparation of experimental tasks aimed at demonst rating internal fixation techniques and their influence on the vascula rity of the bone in simulated fractures. Animal protection law lays do wn that this fracture model must not fail in animal experiments.