Fig. 3

Comparison of the height of the anterior edge of the injured vertebral body and the Cobb’s angle before and after surgery in the two groups. Compared with before surgery (BS), two groups of height of the anterior edge of the injured vertebrae (a) and Cobb’s angle (b) at 1 day (1D), 6 months (6 M), 1 year (1Y), 2 years (2Y), and final follow up (FF) after operation were all statistically improved. The correction of injured vertebral height and kyphotic deformity in the PKP group was more obvious than that of PVP group at each time point. Even though correction of injured vertebral height and Cobb’s angle in both groups gradually decreased with time after operation, there were no statistically differences between 1 day and the final follow-up after operation in each group. *P < 0.05 vs BS in each group and ^#P < 0.05 vs the same time point in PVP group