Table 1 Patient demographics, operative information and disease characteristics
Patient | Age (years) | Gender | Operation time (min) | Blood loss (mL) | Level | Duration of symptoms (months) | Length of follow-up (months) |
|---|---|---|---|---|---|---|---|
1 | 43 | M | 170 | 560 | L4-5 | 24 | 104 |
2 | 68 | M | 120 | 500 | L4-5 | 3 | 24 |
3 | 71 | M | 150 | 860 | L5 | 15 | 30 |
4 | 36 | F | 180 | 600 | L4-5 | 35 | 44 |
5 | 21 | M | 240 | 900 | L4-S1 | 2.5 | 45 |
6 | 29 | M | 200 | 680 | L5-S1 | 28 | 60 |
7 | 30 | F | 210 | 700 | L5-S1 | 2.5 | 43 |
8 | 28 | M | 150 | 570 | L4-5 | 6.5 | 71 |
9 | 40 | M | 130 | 450 | L4-S1 | 3 | 39 |
10 | 50 | M | 190 | 650 | L4-5 | 5 | 50 |
11 | 25 | M | 170 | 800 | L4-S1 | 3 | 46 |
12 | 68 | F | 180 | 710 | L4-5 | 7 | 37 |
13 | 44 | M | 160 | 420 | L4-S1 | 12 | 82 |
14 | 31 | F | 140 | 600 | L5-S1 | 4 | 44 |
15 | 32 | M | 150 | 1100 | L4-5 | 24 | 63 |
16 | 51 | F | 170 | 620 | L5-S1 | 6 | 55 |
17 | 48 | M | 160 | 820 | L4-5 | 4 | 28 |
18 | 46 | M | 190 | 790 | L4-5 | 8 | 35 |
19 | 21 | F | 160 | 920 | L4-5 | 11 | 46 |
20 | 43 | F | 200 | 540 | L4-S1 | 5 | 30 |
21 | 23 | F | 180 | 480 | L5-S1 | 4.5 | 24 |
22 | 56 | F | 150 | 1000 | L4-5 | 1 | 25 |
Mean ± SD | 41.09 ± 15.24 | 170.5 ± 27.86 | 694.1 ± 184.7 | 9.73 ± 9.52 | 46.59 ± 19.97 |