| 摘要 |
The system according to the invention comprises a screw 10 of axis 12 having a proximal part 13 of polygonal shape and a distal part 14 with a thread 15-1 of diameter Sfv, a screwdriver comprising a handle and a screwdriver rod 21 of axis 22, of which the transverse dimension has a value at most equal to Sfv, an orifice 23 formed in the free end of the rod 21 and having a polygonal cross section matching that of the part 13, means for coupling the screw 10 to the screwdriver rod 21, these coupling means comprising a pin Br rigidly connected to the free end of the screwdriver rod 21 and a bore formed in the screw 10 along its screwing axis, with a cross section substantially matching that of the pin. Use for reducing bone fractures, particularly in the hands and feet. |
