Table 2.

Surgical results of posterior spinal fusion (PSF) and anterior/posterior combination (A-P) groups

	PSF group	A-P group
Surgery duration time(min)	251 ± 57.9	402 ± 59.2
Blood loss(ml)	780 ± 408.5	1129 ± 447.7
Spinal cord function improvement rate(%)	90.1	87.5
Sagittal index (°)
Preoperative	32 ± 11.5	33 ± 13.0
Postoperative	6.8 ± 3.7	7 ± 4.0
Corrective angle	25 ± 9.3	26 ± 9.6
Correction rate of kyphosis angle (%)	79 ± 9.9	80 ± 8.4
Loss of correction angle (°)	1.2 ± 1.0	1.3 ± 1.2
Average time to stand (days)	8.3 ± 2.1	12 ± 2.2