Patient-specific spinal rod using 3d printing and pedicle fixation device including the same

A pedicle fixation device, comprising:

• a pedicle screw provided with a head portion configured to have an accommodation groove of a predetermined depth formed thereon, and a screw portion configured to be driven into a bottom surface of the head portion by a predetermined depth in a vertical direction of a pedicle, and serves as a fixing base for a damaged pedicle;
• a rod seated in the accommodation groove, and configured to connect two or more pedicle screws to fix an angle and spacing of the pedicle;
• and
• a fixing means fastened to the accommodation groove of the pedicle screw and configured to pressurize the rod to prevent the rod from moving,
• wherein the rod is characterized in that information of a damaged spine is obtained through X-rays or computed tomography (CT) scans before surgery, an image is created by considering the setting of a coupling part of the rod that is combined with a pedicle screw inserted and fixed in a vertebral body to allow two or more vertebral bodies of the damaged spine to fuse and a bending shape according to a curve of a spine, and a metal material is melted and output by 3D printing to have an appearance corresponding to the created image, and comprises:
• a rod-shaped coupling portion coupled with the pedicle screw;
• and
• a support portion integrally formed with the coupling portion by extending in a longitudinal direction of the coupling portion, and configured to have a diameter or shape different from that of the coupling portion to serve as a support for holding the spine.