It is a set of instruments and implants that cover degenerative disorders (open or minimally invasive access), deformities and trauma indications.
It is made of TC20 titanium alloy in accordance with GB/T13810, consisting of U-shaped pedicle screws, U-shaped pedicle screws (long tail), universal pedicle screws, and universal pedicle screws (long tails), screw plugs, connectors and connecting rods. The surface is anodized.
Indications:
1) Suitable for thoracic and lumbar degenerative diseases;
2) Herniated lumbar disc;
3) Spondylolisthesis;
4) Spinal fracture;
5) spinal canal stenosis;
6) Revision of spinal deformity (such as scoliosis, kyphosis, lordosis), tumor, pseudarthrosis, or fusion or failure of fusion.
It can be seen from the above three thread pressure diagrams that under the same force, the negative angle thread eliminates the component force on the side wall of the screw tail, greatly enhances the tensile performance of the screw, and reduces the expansion of the screw.
