Table 3.

Trunk balance analysis of the patients

Types	Preoperative Cobb (secondary curve)	Postoperative Cobb (secondary curve)	t	P	Final Cobb (secondary curve)	t	P
Type I	42.3°±16.5°	20.9°±11.7°	6.18	<0.01	25.5°±10.7°	4.16	<0.01
Type II	45.0°±18.2°	25.6°±13.8°	10.6	<0.01	28.1°±12.8°	8.9	<0.01
Type III	26.3°±9.5°	7.6°±9.2°	15.2	<0.01	8.9°±10.1°	12.6	<0.01
Type IV	28.8°±16.5°	10.6°±14.3°	4.9	<0.01	13.0°±14.6°	3.9	<0.01
Total	33.1°±15.9°	13.1°±13.8°	20.9	<0.01	16.2°±14.4°	15.1	<0.01

	Preoperative LT (mm)	Postoperative LT (mm)	t	P	Final LT (mm)	t	P
Type I	39.3±12.9	20.4±9.8	5.7	<0.01	23.2±11.1	5.4	<0.01
Type II	78.4±19.3	25.2±13.3	14.2	<0.01	27.2±13.5	12.4	<0.01
Type III	34.5±12.1	12.3±8.8	23.4	<0.01	14.0±9.5	21.3	<0.01
Type IV	58.1±30.4	23.4±18.4	4.5	<0.01	29.4±19.8	3.6	<0.01
Total	37.3±12.7	10.7±7.1	18.4	<0.01	12.7±8.3	17.5	<0.01

	Preoperative SS (mm)	Postoperative SS (mm)	t	P	Final SS (mm)	t	P
Type I	26.6±12.7	10.2±11.1	6.2	<0.01	12.1±10.8	5.3	<0.01
Type II	25.8±10.6	6.8±5.2	11.8	<0.01	8.7±5.7	10.4	<0.01
Type III	12.9±10.3	3.5±6.0	6.8	<0.01	4.5±6.4	6.2	<0.01
Type IV	18.8±18.4	4.3±6.7	3.7	<0.01	7.1±9.2	3.5	<0.01
Total	18.8±9.5	4.2±5.1	18.3	<0.01	5.6±5.9	17.5	<0.01

	Preoperative SH (mm)	Postoperative SH (mm)	t	P	Final SH (mm)	t	P
Type I	31.2±25.3	10.8±10.5	3.7	<0.01	14.2±12.9	3.2	<0.01
Type II	21.4±10.3	3.0±6.8	10.8	<0.01	7.6±7.6	9.1	<0.01
Type III	18.5±9.3	2.8±4.0	16.5	<0.01	4.3±5.0	15.5	<0.01
Type IV	30.1±13.8	5.7±8.1	5.2	<0.01	8.9±7.4	4.7	<0.01
Total	19.8±10.5	3.9±5.4	19.5	<0.01	5.6±6.5	17.4	<0.01