Fig. 4

Preoperative imaging of a 7-year-old boy demonstrating L1-L3 involvement, with almost complete disappearance of L2 and L3 vertebral body resulting in spinal instability. In addition, dead bone fragments protruded into the spinal canal and there were extensive psoas abscesses (a-d). Three-month postoperative imaging showed satisfactory correction of kyphosis (e, f). Three-year postoperative X-ray showed that the position of the internal fixation and strut bone was appropriate, and the coronal and sagittal alignment was good (g, h). X-ray showed no obvious coronal or sagittal deformities 12 years postoperatively (i, j). Solid fusion was achieved (k). MRI revealed that the spinal canal was unobstructed and the spinal cord was not compressed (l)