| 摘要 |
The disclosure relates to a vertebral column stabilising device comprising at least two pedicle screws and at least one connecting element therebetween. Said invention also relates to pedicle screws which combine advantages of monoaxial and polyaxial screws in such a way that disadvantages thereof are avoided. For this purpose, the screw head is fixedly mounted on the screw shaft in order to ensure an optimal replacement of vertebra, wherein a movable spherical element arranged in the screw head eases the introduction of a connection element through the screw head and is fixedly connectable thereto after a successful introduction.
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