Figure 1A–F.

Lateral X-ray radiographs of vertebral fractures of representative patients from OPSF-4, -6, PPSF-6, and -6 screw groups before, immediately after, and 12 months after the surgery. (A–C) Lateral view radiographs of a 47-year-old male patient with Denis type IB vertebral fracture (at L1) in the OPSF-4 group before (A), immediately after (B), and 12 months after the surgery (C). (D–F) Lateral view radiographs of a 57-year-old female patient with type IIB vertebral fracture (at L2) in the OPSF-6 group before (D), immediately after (E), and 12 months after the surgery (F).