Table 3.

Postoperative recovery of Cobb’s angle in the affected-vertebrae fixation group and short-segment fixation group ($\overline{x}\pm s$)

Groups	No. of patients	Before operation (°)	After operation (°)	Last follow-up (°)	Correction (°)	Loss (°)
Affected-vertebrae fixation group	71	24.8 ± 15.2	8.9 ± 3.5	10.8 ± 3.8	15.9 ± 10.2	1.9 ± 0.6
95% CI		21.3 to 28.3	8.1 to 9.7	9.9 to 11.7	13.5 to 18.3	1.8 to 2.0
Short-segment fixation group	64	26.2 ± 14.1	9.5 ± 4.1	11.1 ± 4.3	17.7 ± 9.5	1.6 ± 1.7
95% CI		22.7 to 29.7	8.5 to 10.5	10.0 to 12.2	15.4 to 20.0	1.2 to 2.0
p value		0.735	0.361	0.668	0.326	0.174