Fig. 2From: Use of iliac screw associated with more correction of lumbar lordosis than S2-alar-iliac screw for adult spinal deformityA 72-year-old female patient from S2AI group. The SVA, PT, and LL were 200.1 mm, 27.6° and 2.5° preoperatively (A and B) and changed to 9.2 mm, 17.6°, and − 58.5 after surgery (C and D). S2AI indicates S2-Alar-iliacBack to article page