Spinal correction device

A spinal correction device, comprising:

• a pedicle screw comprising a seating part having a pair of first slits formed opposite to each other, and a screw part disposed at one end of the seating part so as to be implanted into a bone;
• an extender having a pair of second slits for guiding a rod so as to seat the rod in the seating part, and detachably fastened at one end of the extender to an outer surface of the seating part;
• a reduction body detachably fastened to an opposite end of the extender;
• and
• a rod reducer arranged to pass through the reduction body and the extender so as to fix the rod placed in the pair of second slits by pressing the rod against the seating part,
• wherein a pair of first fastening grooves are formed opposite to each other on the outer surface of the seating part, and the extender comprises a pair of first fastening parts fastened to the pair of first fastening grooves, respectively,
• wherein each of the pair of first fastening parts comprises:
• a first fastening piece having a first and a second end,
• wherein the first fastening piece is hinged to a central part of the extender to form a first hinge hole so as to be pivotable, wherein a first hook is formed at the first end of the first fastening piece that is fastened to any one of the pair of first fastening grooves;
• and
• a first elastic body having a first end and a second end,
• wherein the first end of the elastic body is connected to the second end of the first fastening piece and the second end of the elastic body is connected to an outer surface of the extender so as to provide a fastening force to the first hook.