Safety and efficacy of posterior approach for resection of spinal meningioma: Impact of dural attachment location

Table 1 Patient information

Case number	Age (years)	Sex	Clinical presentation	Duration of symptoms (months)	Spinal segment	Dural attachment location	Calcification	Tumor length (cm)
1	68	Male	Pain; Sensory and motor deficit	4	T8	Ventrolateral	No	1.66
2	73	Male	No	0	T8/9	Dorsolateral	Yes	1.88
3	71	Female	Pain	24	T4	Dorsolateral	Yes	2.26
4	60	Female	Pain; Sensory deficit	12	T7-9	Dorsolateral	Yes	1.66
5	57	Female	No	0	T9-11	Ventrolateral	No	2.00
6	68	Female	Pain; Sensory and motor deficit	24	T4	Ventrolateral	Yes	1.35
7	54	Female	Sensory and motor deficit	5	T9/10	Ventral	No	1.69
8	45	Male	No	0	T12	Lateral	No	1.57
9	61	Female	Pain; Sensory deficit	12	T11/12	Dorsal	Yes	1.63
10	69	Female	Sensory and motor deficit	12	T3	Ventral	No	1.70
11	58	Female	Sensory and motor deficit; Urinary dysfunction	72	T6/7	Ventrolateral	Yes	1.66
12	63	Female	Sensory and motor deficit	24	T11/12	Dorsal	No	2.63
13	69	Female	Sensory and motor deficit	4	T5/6	Ventrolateral	No	1.61
14	53	Male	Sensory and motor deficit	12	T9/10	Dorsal	No	1.26
15	71	Female	Sensory and motor deficit	12	C5/6	Lateral	Yes	1.74
16	57	Male	Pain; Sensory deficit	12	T5/6	Lateral	No	1.39
17	58	Female	Sensory and motor deficit	12	T7/8	Lateral	No	1.46
18	76	Female	Sensory and motor deficit	2	T7/8	Dorsolateral	No	1.20
19	71	Male	Sensory and motor deficit	60	T4/5	Dorsal	No	1.34
20	58	Female	Sensory and motor deficit	36	T7/8	Ventrolateral	No	2.22
21	50	Male	Sensory and motor deficit	6	T7/8	Dorsal	No	1.46
22	49	Female	No	0	T10/11	Dorsal	No	1.44
23	72	Female	Sensory and motor deficit	24	T9	Ventral	No	1.39
24	73	Female	Motor deficit; Urinary dysfunction	12	T7/8	Lateral	No	1.54
25	50	Female	Sensory and motor deficit	12	T4	Ventrolateral	No	0.94
26	56	Female	Pain; Sensory and motor deficit	3	T3/4	Ventrolateral	No	2.51
27	68	Male	Sensory deficit	2	T4	Dorsal	No	2.25
28	70	Female	Pain; Sensory deficit	48	T8/9	Dorsal	Yes	1.93
29	58	Female	Sensory and motor deficit	1	T10/11	Ventrolateral	Yes	1.56
30	61	Male	Sensory and motor deficit	12	T1/2	Ventrolateral	No	1.45
31	27	Female	Sensory and motor deficit	7	C3-6	Ventrolateral	No	4.05
32	83	Male	Motor deficit	12	T6/7	Dorsolateral	No	1.60
33	71	Female	Motor deficit	12	T11/12	Lateral	No	2.50
34	63	Female	Sensory and motor deficit	24	T5/6	Lateral	No	0.80