Table 1.
Demographic data of 34 patients.
| All Patients | (n = 34) |
|---|---|
| Age (years) | 32.4 ± 13.0 |
| Female | 10 |
| BMI | 22.8 ± 4.07 |
| Herniation level | |
| L4/5 | 25 |
| L5/S | 9 |
| disease duration (months) | 8.6 ± 6.54 |
| SLR | |
| positive | 20 |
| negative | 10 |
| data loss | 4 |
| NRS for back pain | 4.15 ± 2.35 |
| NRS for leg pain | 6.47 ± 2.03 |
| Herniation type | |
| protrusion | 5 |
| sub-ligamentous | 24 |
| trans-ligamentous | 3 |
| Intraforaminal herniation | 1 |
| Extraforaminal herniation | 1 |
| Pfirrmann classification | |
| Grade II | 13 |
| Grade III | 20 |
| Grade IV | 1 |
| Postoperative recurrent herniation | 1 |
| HIC of protruded NP on MRI | 18 |
Continuous data are presented as the mean ± SD. Categorical data are presented as numbers. Disc degeneration was graded on T2-weighted MRI using a grading system proposed by Pfirrmann [29]. BMI, body mass index; SLR, straight leg raising; NRS, numerical rating scale; LDH, lumbar disc herniation; HIC, high-intensity change; NP, nucleus pulposus; MRI, magnetic resonance imaging.