The present disclosure relates to a spinal rod comprising a rod assembly and an elastic assembly. The rod assembly comprises a movable rod, a stationary rod and a cap, and the cap is between the stationary rod and the movable rod for fixing the movable rod and the stationary rod. The elastic assembly is accommodated by the rod assembly for providing a flexibility to the rod assembly. The spinal rod is able to respond to the lateral, anterior or posterior movements of the patient's spine on a range of limited angles.
