Fig. 4

A 13-year-old male, with a height of 136 cm and a weight of 40 kg, was diagnosed with severe rigid spinal deformity. The operation time was 31 min, intraoperative blood loss was 5 ml, and the total traction duration was 60 days. After traction, the height was 138 cm and the total traction volume was 12 cm. X-ray examination showed that the cervical curvature was significantly straightened after Halo-pelvic fixation brace traction, and the cervical spine sagittal alignment was significantly restored after removal of the fixation brace