In case if the smaller fractures of the bones - particularly the ruined fractures - the optimal fixing direction can be widely varied. In this case, neither the conventional AO-screws, nor the locking screws do not provide any satisfactory results. Foot and hand surgery cases, but up to the shoulder and other small bones, the polyaxial plates are excellent alternative. Toothed lamellas are built according to the functional principle in the holes. The geometry of the lamellas are function along with the specially designed screws. The connection between the screw and the hole allows the surgeon (up to the case of fracture) with the freedom of + / - 15 ° degrees to choose the direction of the screw recovery. This polyaxial range ensures the connection of the special screw head and the lamellas. In case of some plates are generally cannulated fastening techniques may be used.