Fig. 3

A Kaplan–Meier curves of time periods without coronal malalignment (CM) stratified all patients by different CBD correction (1, 1–10 mm; 2, 11–20 mm; 3, 21–30 mm; 4, 31–40 mm; 5, 41–55 mm; 6, > 55 mm). B Kaplan–Meier curves of time periods without CM stratified all patients by location of the LIV (L5 or pelvic fixation). C Kaplan–Meier curves of time periods without CM stratified all patients by instrumented segments. D Kaplan–Meier curves of time periods without CM stratified all patients by age (1, 45–59 years; 2, 60–74 years; 3, ≥ 75 years)