| 摘要 |
A locking screw comprising a screw head, and a screw shaft having an external thread, and a diameter d. One end of the screw shaft is connected to the screw head, and the other end of the screw shaft being a free end. A center line, defined as the line connecting the centers of gravity of the axially sequential, orthogonal cross-sectional surfaces of the locking screw, has a first end point at the screw head and a second end point at a free end of the screw shaft, is not a continuously straight line, and the center line coincides with a point of inflection. Due to the configuration of the locking screw, the clearance between the transverse borehole of the modullary pin and of the locking screw ( 1 ) can be eliminated.
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