Table 3.

Comparison of imaging outcomes between the two groups

	Structural bone graft (N = 51)	Non-structural bone graft (N = 54)	P Value
Preoperative Cobb angle (°) a	21.5 ± 6.3	14.8 ± 10.5	0.000
Postoperative Cobb angle (°) a	9.2 ± 5.6	5.0 ± 6.0	0.000
Last follow-up Cobb angle (°) a	11.6 ± 5.8	7.7 ± 7.1	0.002
Correction of Cobb angle (°) a	12.3 ± 4.4	9.8 ± 6.3	0.019
Loss of Cobb angle (°) a	2.3 ± 1.5	2.7 ± 2.4	0.419
Bone graft fusion time (month) b	7 (4–18)	6 (4–12)	0.007

^a The normally distributed continuous variables were presented as mean ± standard deviation and compared by independent sample t-test

^b The non-normally distributed continuous variables were presented as median (range) and compared by Mann-Whitney U test