Figure 2From: Postoperative shoulder imbalance in Lenke Type 1A adolescent idiopathic scoliosis and related factors A 17-year-old female who underwent posterior correction and fusion using PS constructs. She developed PSI with good correction of the main thoracic curve. The PSI improved at follow-up, as distal adding-on developed (white arrow). A. Before surgery, B. Immediately after surgery, C. At the two-year follow-up.Back to article page