Spine system is made of titanium alloy, according to different age and body parts, spine system design for φ4.0mm-φ7.0mm spine screw and φ4.5mm-φ6.0mm rod. The φ4.5mm-φ5.0mm rod system applied to children fractures, orthopaedic internal fixation. Especially curved rod basically conform to the physiological curvature of human spine design, can be convenient operation. Hollow long arm pedicle screw can be minimal invasive operation.
