Rate of coronal curve progression was significantly correlated with the initial Cobb index.

Radiographs and charts were reviewed for main coronal curve angle and maximum kyphosis as well as occurrence of secondary surgery.

When stratified based on etiology, there was no significant coronal curve progression between 2- and 5-year follow-up.

If the coronal curve stabilizes or improves, then sagittal segmental abnormality could also be stabilized (in 7 of 11 patients).