The invention discloses a posterior reduction
internal fixation system. The posterior reduction
internal fixation system comprises two
vertebral body orthopedic rods arranged in parallel and an adjusting device. During operation, the connecting rods of the two
vertebral body orthopedic rods are connected with a
vertebral body, and an
occipital bone plate is connected with an
occipital bone, so that the posterior reduction
internal fixation system is connected with the
occipital bone and the vertebral body; the base
assembly is connected with a
pedicle screw close to an occipital bone, and theconnecting
assembly is connected with an occipital bone screw; the inclination angle between the occipital
bone plate and the connecting rod is adjusted, specifically, the connecting rod is driven bythe first linear driving
assembly to move, the first drag hook and the second drag hook are connected with two occipital
bone screws on the occipital bone correspondingly, and the first linear drivingassembly is driven by the second linear driving assembly to move; the first linear driving assembly drives the connecting rod and the first drag hook and the second drag hook on the connecting rod tomove, the occipital bone is lifted and dragged, the inclination angle between the occipital
bone plate and the connecting rod is made to conform to the anatomical structure of the occipital bone andthe cervical
vertebra of the
human body, and posterior reduction internal fixation is achieved.