| 摘要 |
The system has a bone screw (20) with a screw head and a shaft (24) with an external thread for screwing into bone to bridge a fracture, a coupling device on the head, a fixing bore (30,32) through the shaft, an extra-corporal tightening aid (50) with a coupling section (54) for engaging the coupling section of the bone screw and at least one pin-shaped fixing element (80) that is passed through the fixing bore using a sighting bore (60,62,64). AN Independent claim is also included for the following: a bone screw for an inventive system and a tightening aid for a bone screw.
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