Table 1.

Correction of deformity in kyphosis group

Patients: cases	Correction results				Operation condition
	Preop (°)	Postop (°)	Correction (°)	2 years postop (°)	Osteotomy site	Instrumentation segments
1	90	30	65	32	T11, T12	T7–10, L1–3
2	100	25	75	28	T12, L1	T9–11, L2–4
3	132	9	123	9	T12, L1, L2	T8–11, L3–4
4	90	29	61	30	T9, T10	T6–8, T11–L1
5	88	14	81	15	T12, L1	T9–11, L2–4
6	102	30	72	36	T4, T5	T1–3, T6–11
7	98	16	81	16	T11, T12	T7–10, L1–3
8	95	10	100	12	T11, T12, L1	T8–10, L2–4
9	86	16	70	20	T12, L1	T9–11, L2–4
10	138	14	124	15	T11, T12, L1, L 2	T6–11, L3–5
11	99	29	70	34	T3–6	C7–T2, T7–11
12	93	4	89	4	T11, T12, L1	T8–10, L2–4
13	85	6	79	8	L1, L2	T9–12, L3–4
14	108	10	98	12	L1, L2, L3	T9–T12, L4–5
15	91	11	80	16	T11, T12, L1	T8–10, L2–4
16	82	10	72	12	L2, L3	T9–L1, L4–5
Average	98.6	16.4	83.8	18.7