Figure 1

Coronal consistency pattern (A). A 67-year-old female with coronal consistency pattern obtained worsening coronal imbalance after surgery (B). GCM changed from 44.8 mm preoperatively (A) to 58.7 mm postoperatively (B), with C7 plumb line on the same side (left) of CSVL. CSVL central sacral vertical line, GCM global coronal malalignment.