| 摘要 |
The fixator comprises a link rod (4) provided with a first part (4a) which interacts with clamping means (7) provided on pedicle screws (3) and a second part (4b), with smaller diameter than the first, which slides freely in guide means (5, 5') in order to allow reduction of the forces applied to the disc of the vertebra lying just above the last vertebra instrumented by means of the fixator (2). <IMAGE> |
