Table 1.

Demographic, clinical, and surgical characteristics of the patients

ID	Sex	Age (year)	UIV	LIV	PLIF	PSO	SPO	IF	Revision	Preop Stenosis	Preop Instability	Follow-up (month)
1	Male	51	T10	Iliac	-	L4	-	Iliac	-	-	+	12
2	Male	69	T10	Iliac	-	-	+	Iliac	+	+	-	13
3	Male	54	T10	Iliac	-	-	+	Iliac	-	+	-	15
4	Male	66	T10	Iliac	2 levels	L3	-	Iliac	+	-	+	17
5	Male	56	T10	Iliac	-	-	+	S2 (Iliac)	-	+	-	18
6	Male	58	T10	Iliac	-	-	+	Iliac	-	+	-	18
7	Male	58	T10	Iliac	-	L3	-	Iliac	+	-	+	18
8	Male	57	T10	Iliac	2 levels	-	+	Iliac	-	-	+	12
9	Female	63	T10	Iliac	-	-	+	S2 (Iliac)	-	+	-	18
10	Female	63	T10	Iliac	-	-	+	Iliac	-	-	+	12
11	Female	69	T10	Iliac		L3	-	S2 (Iliac)	+	+	-	14
12	Female	64	T9	Iliac	1 level	-	+	Iliac	-	+	-	13
13	Female	67	T10	Iliac	-	L4	-	Iliac	-	-	+	18
14	Female	64	T10	Iliac	-	-	+	S2 (Iliac)	+	+	-	17
15	Female	59	T10	Iliac	1 level	-	+	Iliac	-	+	-	16
16	Female	58	T10	Iliac	-	L3	-	Iliac	+	-	+	18
17	Female	64	T10	Iliac	1 level	-	+	Iliac	-	+	-	15
18	Female	61	T10	Iliac		-	+	S2 (Iliac)	-	+	-	15
19	Female	59	T11	Iliac	1 level	-	+	Iliac	-	+	-	14
20	Female	68	T10	Iliac	-	-	+	Iliac	+	-	+	17
21	Female	69	T10	Iliac	-	L3	-	S2 (Iliac)	+	+	-	16
22	Female	68	T10	Iliac	1 level	-	+	Iliac	+	+	-	14
23	Female	71	T10	Iliac	-	-	+	Iliac	-	-	+	17

UIV: Upper Instrumented Vertebra; LIV: Lower InstrumentedVertebra(level); PLIF: Posterior Lumbar Interbody Fusion; PSO: Pedicle Subtraction Osteotomy; SPO: Smith-Peterson Osteotomy; IF: Ilium fixation.