Abstract: Objective To investigate the lamina windowing small gap and the vertebrae pedicle bone graft in the treatment of thoracolumbar burst fractures of the curative effect.Methods 132 patients with thoracolumbar burst fracture of were selecteds，the average random divided into open the window and pedicle group，open a window line set of lamina windowing small gap vertebral body bone graft and pedicle group through pedicle vertebral body bone graft，through intraoperative records，hospital records and postoperative follow-up of collecting morphological index，operation index，JOA score and Frankel classification of spinal cord injury in order to evaluate the clinical curative effect of two kinds of operative methods.Results The operation time in the pedicle group was（103.58±14.37）min，which was more than that of the fenestration group [（85.72±12.96）min]，the incision drainage rate in the pedicle group [（100.96±5.29）ml] was less than that in the fenestration group [（178.52±12.41）ml]，and the postoperative pain score in the pedicle group [（15.37±2.86）] was higher than that in the fenestration group [（8.26±4.52）]，the healing time of fractures in the pedicle group [（20.85±0.60）weeks ]was less than that of the fenestration group [（24.29±1.06）weeks].The difference was all statistically significant （P<0.05）.After treatment，the intervertebral space height of the pedicle group [（11.55±1.94）mm] was significantly higher than that of the fenestration group [（9.53±1.92）mm]，and the difference was statistically significant（P<0.05）.After treatment，the JOA scores of patients in the pedicle group[7.78±1.39，4.93±0.92，13.84±2.74] were significantly higher than those in the open window group[6.24±1.20，4.50±0.83，12.43±2.52]（P<0.05）.The difference between the composition of Frankel spinal cord injury in the pedicle group and the fenestration group was statistically significant （P<0.05）.Conclusion Compared with small fenestration through the intervertebral space，this surgical method can promote the fracture healing and improve the symptoms of patients more rapidly，and is more suitable for the surgical treatment of thoracolumbar burst fracture patients.

Key words: thoracolumbar bursting fracture, small open window between laminates, pedicle approach, bone graft