Quattroaxial trans. | uniplanar | pre-fixation - Pedicle screws

Quattroaxial trans. | uniplanar | pre-fixation

The MIS Z-Pedicle Screws with lengthening shaft in combination with the patented SnapOff-Technique provide a rigid connection between the shaft and the implant and offer the possibility of a direct manipulation without any additional instruments.

Surgical correction of spondylolisthesis, reposition in fracture- and the derotation in scoliosis treatments are achieved directly the innovative screw design and the long reduction thread with the pre-assembled set-screw.

The Z-Pedicle Screws are self-drilling and self-tapping due to its unique tip and thread design. A multi-conical double thread design increases stability in the pedicle and offers ease of insertion.

The quattroaxial trans. screw is a uniplanar screw with an additional degree of freedom in the other planes that facilitates the rod insertion and minimizes undesired tension. It has the mobility of a polyaxial screw in the cranio-caudal direction and of a monoaxial screw in the medial-lateral direction. In combination with the polyaxial screw it is used especially for deformity treatment offering the surgeon the possibility for derotation of the vertebrae. The patented screw design is the next generation of pre-fixation screws with a 2-3 times higher angular stability vs. polyaxial screws to avoid sliding of screw head. The screw head position will be finally fixed through the rod.

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