Table 1.
Baseline characteristics of the two groups.
| LE-ULBD | MI-TLIF | P-value | |
|---|---|---|---|
| N | 24 | 36 | – |
| Male/female | 8/16 | 10/26 | 0.648 |
| Age (years) | 59.0 ± 7.9 (41–77) | 59.9 ± 8.6 (41–81) | 0.540 |
| Levels involved | |||
| L3-L4 | 1 (4.2%) | 1 (2.8%) | 0.520 |
| L4-L5 | 18 (75.0%) | 25 (69.4%) | |
| L5-S1 | 5 (20.8%) | 10 (27.8%) | |
| Preoperative symptoms | |||
| Back pain | 21 (87.5%) | 32 (88.9%) | 0.871 |
| Leg pain | 22 (91.7%) | 34 (94.4%) | 0.675 |
| Numbness | 19 (79.2%) | 27 (75.0%) | 0.711 |
| Motor weakness | 17 (70.8%) | 25 (69.4%) | 0.909 |
N indicates number of patients included in the statistical analysis; LE-ULBD, lumbar endoscopic unilateral laminotomy bilateral decompression; MI-TLIF, minimally invasive transforaminal lumbar interbody fusion.