The demographics, level of foraminal stenosis, preoperative, and postoperative (in months) visual analog scale scores (0–10) for each consecutive patient.
| Case Number | Sex/Age, y | Level of Foraminal Stenosis | Pre-VAS | Post-VAS 6 mo | Post-VAS 12 mo | Post-VAS 24 mo | PostVAS60 mo |
| 1 | M/61 | L5 | 8 | 3 | 2 | 2 | 2 |
| 2 | M/63 | L5 | 7 | 3 | 2 | 2 | 2 |
| 3 | M/79 | L3 | 7 | 3 | 3 | 3 | 3 |
| 4 | M/39 | L5 | 7 | 3 | 3 | 3 | 3 |
| 5 | F/30 | L5 | 9 | 4 | 4 | 4 | 4 |
| 6 | F/69 | L4 | 7 | 8 | 8 | 8 | 8 |
| 7 | F/69 | L4 | 7 | 2 | 0 | 0 | 0 |
| 8 | F/48 | L5 | 8 | 4 | 4 | 4 | 4 |
| 9 | F/51 | L5 | 6 | 2 | 2 | 1 | 1 |
| 10 | F/75 | L5 | 6 | 2 | 2 | 2 | 2 |
| 11 | F/47 | L4 | 8 | 7 | 7 | 7 | 7 |
| 12 | M/64 | L3 | 7 | 7 | 7 | 7 | 7 |
| 13 | F/61 | L5 | 8 | 2 | 1 | 1 | 1 |
| 14 | M/61 | L4 | 6 | 2 | 2 | 2 | 2 |
| 15 | F/64 | L4 | 8 | 4 | 3 | 3 | 3 |
| 16 | M/58 | L4 | 6 | 5 | 5 | 5 | 5 |
| 17 | F/68 | L4 | 7 | 3 | 3 | 3 | 3 |
| 18 | F/46 | L5 | 8 | 3 | 2 | 2 | 2 |
| 19 | M/46 | L5 | 8 | 4 | 4 | 4 | 4 |
| 20 | M/83 | L4 | 7 | 6 | 6 | 6 | 6 |
| 21 | F/47 | L5 | 6 | 2 | 2 | 1 | 1 |
| 22 | F/37 | L5 | 8 | 7 | 7 | 7 | 7 |
| 23 | F/64 | L5 | 6 | 3 | 2 | 2 | 2 |
| 24 | M/51 | L5 | 9 | 3 | 2 | 2 | 2 |
| 25 | F/55 | L5 | 9 | 2 | 0 | 0 | 0 |
| 26 | M/69 | L3 | 7 | 3 | 3 | 2 | 2 |
| 27 | F/52 | L5 | 9 | 4 | 4 | 4 | 4 |
| 28 | F/62 | L4 | 10 | 3 | 2 | 2 | 2 |
| 29 | M/42 | L5 | 7 | 3 | 2 | 2 | 2 |
| 30 | M/68 | L3 | 6 | 2 | 1 | 1 | 1 |
| 31 | F/46 | L3 | 9 | 3 | 3 | 3 | 3 |
| 32 | F/80 | L5 | 6 | 3 | 2 | 2 | 2 |
| 33 | M/48 | L3 | 7 | 3 | 3 | 3 | 3 |
| 34 | M/71 | L5 | 8 | 8 | 8 | 8 | 8 |
| 35 | M/74 | L4 | 8 | 3 | 2 | 2 | 2 |
| 36 | F/69 | L5 | 7 | 3 | 3 | 3 | 3 |
| 37 | M/41 | L5 | 6 | 3 | 2 | 2 | 2 |
| 38 | M/75 | L4 | 8 | 4 | 3 | 3 | |
| 39 | M/71 | L4 | 8 | 7 | 7 | 7 | |
| 40 | M/42 | L4 | 7 | 7 | 7 | 7 | |
| 41 | F/74 | L4 | 8 | 3 | 2 | 2 | |
| 42 | M/41 | L4 | 7 | 2 | 2 | 1 | |
| 43 | F/64 | L5 | 8 | 4 | 4 | 3 | |
| 44 | M/72 | L5 | 8 | 3 | 2 | 2 | |
| 45 | F/83 | L3 | 8 | 3 | 3 | 2 | |
| 46 | M/75 | L5 | 9 | 4 | 4 | 4 |
VAS, visual analog scale.