Fig. 3

Relative anterior height (RAH) of the fractured vertebra and the kyphotic angle measurement method. Measurement of anterior height and kyphotic angle before (A) and after (B) operation. The posterior height (PH) of caudal healthy vertebra, which was adjacent to OVCF, was measured and transferred as 100% on the radiograph. TRA = a/[(b + c)/2]. The kyphotic angle (α) was measured as the angle between the superior endplate at one level above the injured vertebrae and inferior endplate at one level below the injured vertebrae