Fig. 1From: Sequential correction using satellite rod for the treatment of severe rigid spinal deformity: a retrospective study of 19 casesSurgical process diagram. a Pedicle screws were implanted; b PVCR in the apical region and short rod on the concave side; c two short precontoured satellite rod was installed and partial correction; d completed correction procedures, and the short rod on the concave side was retainedBack to article page