Table 1.
Patients’ demographics
| Variable | Value |
|---|---|
| Age (yr) | 41.7 ± 19.9 |
| Preoperative VAS | |
| Back | 2.3 ± 2.8 |
| Leg | 7.4 ± 1.3 |
| Preoperative ODI | 47.0 ± 12.3 |
| Follow-up time (mo) | 8.4 ± 3.8 |
| Sex | |
| Male | 11 (68.8) |
| Female | 5 (31.2) |
| Body mass index (kg/m2) | |
| < 18.5 | 1 (6.2) |
| 18.5–25 | 9 (56.4) |
| 25–30 | 4 (25.0) |
| > 30 | 2 (12.4) |
| Previous operation history | 1 (6.2) |
| Cigarette smoking | 2 (11.8) |
| Disc degeneration | |
| Grade 2 | 5 (31.3) |
| Grade 3 | 10 (62.5) |
| Grade 4 | 1 (6.2) |
| Herniation site | |
| Central | 4 (25.0) |
| Subarticular | 7 (43.7) |
| Foraminal | 5 (31.3) |
Values are presented as mean±standard deviation or number (%).
VAS, visual analogue scale; ODI, Oswestry Disability Index.