Predictive Role of Shoulder Imbalance and Residual <scp>C7PL</scp> – <scp>CSVL</scp> in Coronal Imbalance After Surgery for Severe and Rigid Scoliosis: A Retrospective Analysis

The prevalence of coronal imbalance at the last follow-up remained high in severe and rigid scoliosis. Postoperative shoulder imbalance and residual trunk shift could be used as predictors for ultimate coronal imbalance. The aggravation of coronal imbalance might represent a possible compensatory response to shoulder imbalance, as suggested by the observed adverse trends. However, this interpretation should be considered hypothetical, since a direct causal relationship could not be verified yet. Surgeons should pay attention to restore an appropriate relationship between curves in surgical planning for better results.