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. 2015 Nov 13;94(45):e1995. doi: 10.1097/MD.0000000000001995

FIGURE 2.

FIGURE 2

Preoperative and 2-year postoperative standing coronal and sagittal radiographs for a 16-year-old female with Lenke 5C AIS and an anteverted pelvis (recovered by surgery). A, Preoperative coronal Cobb angle of the major TL/L curve of 45° from T11 to L4 and a 10° compensatory minor thoracic curve from T5 to T11. B, A 2-year postoperative standing coronal radiograph obtained after selective posterior instrumentation and fusion with pedicle screws from T10 to L5, showing a 7° major TL/L curve and an 8° noninstrumentation compensatory curve with satisfactory coronal and shoulder balance. C, The preoperative sagittal alignment showed an anteverted pelvis with PT = 1°, which is smaller than 4.0° (20% PI/2). The preoperative LL was 50°. D, The 2-year postoperative pelvis showed recovery of anteversion (PT = 7°). The LL was 55°. AIS = adolescent idiopathic scoliosis, PI = pelvic incidence, PT = pelvic tilt, SS = sacral slope, TL/L = thoracolumbar/lumbar.