| 摘要 |
The invention relates to a bone screw (10) for implants for correcting and stabilizing the spine, said bone screw comprising a threaded shank (12) with a screw head (16) having a driving profile (48) for a turning tool. A head housing (18) is connected via a coupling section (24) to the screw head (16), wherein said head housing (18) has a rod receptacle (28) for a fixing rod (104), which receptacle is delimited laterally by a first and a second wall leg (30, 32). The two wall legs extend away from the coupling section in the direction of the longitudinal axis (20) of the housing and each have an internal thread segment (34) for a fixing screw (152), by means of which the fixing rod can be fixed in the rod receptacle. The second wall leg (32) protrudes beyond the first wall leg (30) in the axial direction. The first wall leg has, at the free edge section (36) thereof, a first coupling means (38) for coupling a repositioning instrument (102). The second wall leg is provided with a designed breaking point (44). |
