Table 1.

Patient demographics, operative information, and disease characteristics

Patient	Age (years)	Gender	Operation time (minutes)	Blood loss (mL)	Level	Duration of symptoms (months)	Length of follow-up (months)
1	25	M	145	200	L5–S1	18	27
2	23	M	150	200	L5–S1	12	27
3	53	F	150	200	L5–S1	6	33
4	20	M	170	150	L5–S1	36	27
5	50	M	170	150	L5–S1	12	27
6	36	F	285	500	L5–S1	12	91
7	25	M	210	200	L5–S1	12	28
8	33	F	175	200	L5–S1	12	30
9	46	F	160	250	L5–S1	7	32
10	61	F	525	600	L5–S1	36	73
11	59	M	645	800	L5–S1	4	51
12	26	F	755	800	L5–S1	24	50
13	41	M	180	350	L5–S1	12	33
14	30	F	765	800	L5–S1	60	60
15	65	M	540	400	L5–S1	1	27
16	47	M	348	400	L5–S1	3	30
17	69	M	80	200	L5–S1	5	33
18	54	M	172	200	L5–S1	3	43
19	40	F	167	200	L5–S1	6	33
20	57	M	190	300	L5–S1	5	33
21	35	F	125	250	L5–S1	6	39
22	37	F	160	600	L1–S1	60	27
23	25	M	500	1600	L2–S1	2	27
24	40	F	135	200	L5–S1	7	35
25	60	F	210	500	L5–S2	6	29
26	53	M	100	150	L5–S1	12	39
27	24	M	177	200	L3–S1	24	28
28	23	M	132	200	L5–S1	24	32
29	47	F	151	200	L5–S1	72	27
30	44	M	188	400	L4–S2	12	27
31	68	F	148	400	L5–S2	2	33
32	31	F	159	800	L4–S1	10	51
33	21	M	170	800	L5–S1	12	27
34	39	F	127	300	L5–S1	12	27
35	44	M	147	200	L5–S1	12	31
36	24	M	156	200	L5–S1	4	29
37	25	M	225	300	L5–S1	9	28
38	44	M	112	200	L5–S1	8	27
39	36	M	241	600	L5–S1	4	26
40	46	F	208	500	L5–S1	24	25
41	33	F	110	200	L5–S1	3	25
42	36	F	140	300	L5–S1	24	43
43	34	F	130	300	L5–S1	30	24
Mean ± SD	40.21 ± 13.75	-	231.00 ± 170.75	383.72 ± 280.46		15.47 ± 16.18	34.74 ± 13.45

SD standard deviation, M male, F female.