Table 1 Baseline demographic information of patients (OSE vs. MED)
Item | OSE (n = 68) | MED (n = 86) | P value |
|---|---|---|---|
Age (years) | 41.6 ± 10.7 | 42.9 ± 10.9 | 0.492 |
Gender (male/female) | 38/30 | 42/44 | 0.385 |
BMI (kg/m2) | 22.1 ± 2.9 | 22.5 ± 3.5 | 0.905 |
Disease duration (months) | 11.8 ± 2.3 | 11.2 ± 2.5 | 0.106 |
Type of disk herniation | |||
Central | 7 (10.3%) | 11 (12.7%) | |
Paracentral | 55 (80.9%) | 69 (80.2%) | 0.776 |
Far lateral | 6 (8.8%) | 6 (7.0%) | |
Surgical segment | |||
L3/4 or higher | 5 (7.4%) | 11 (12.8%) | |
L4/5 | 41 (60.3%) | 44 (51.2%) | 0.469 |
L5/S1 | 22 (32.4%) | 31 (36.0%) | |
VAS score | |||
Back | 5.8 ± 1.2 | 6.0 ± 1.9 | 0.219 |
Leg | 7.0 ± 0.8 | 6.9 ± 0.9 | 0.922 |
ODI score | 66.3 ± 14.6 | 67.7 ± 12.2 | 0.539 |