Liu W, Zhao Y, Yuan S, et al. - This study was undertaken to investigate the clinical results of Schwab grade 4 osteotomy combined with percutaneous pedicle screws (PPS) fixation for the treatment of post-traumatic thoracolumbar kyphosis (PTK). Researchers recruited a total of 34 individuals with PTK (group A) who had undergone Schwab grade 4 osteotomy combined with PPS fixation. It was shown that for PTK treatment, Schwab grade 4 osteotomy combined with percutaneous pedicle screws fixation is a minimally invasive, safe, and effective method.