Effectiveness and postoperative rehabilitation of one-stage combined anterior-posterior surgery for severe thoracolumbar fractures with spinal cord injury

Table 3 Comparison of the function of the affected vertebrae (mean ± SD)

Group	Anterior vertebral height ratio of the affected vertebra (%)		Posterior vertebral height ratio of the affected vertebra (%)		Cobb angle (°)		Canal-occupying ratio of the affected vertebra (%)
	Before	After	Before	After	Before	After	Before	After
Group 1 (n = 60)	61.86 ± 6.20	91.97 ± 7.12	89.74 ± 8.51	97.52 ± 1.66	27.54 ± 2.71	5.11 ± 0.53	66.12 ± 6.17	13.09 ± 1.23
Group 2 (n = 60)	61.57 ± 6.25	89.20 ± 6.16	89.43 ± 8.62	95.40 ± 2.35	27.68 ± 2.62	7.09 ± 0.75	66.63 ± 6.41	12.87 ± 1.45
t value	0.255	2.279	0.198	5.708	0.288	16.700	0.444	0.896
P value	0.799	0.024	0.843	0.001	0.774	0.001	0.658	0.372