Table 3.
Clinical outcome comparison between minimally invasive and open group
| Minimally invasive TLIF | Open TLIF | p value | |
|---|---|---|---|
| VAS (back) | |||
| 1 month postoperation | 2.5±1.0※ | 3.2±0.7※ | 0.000 |
| 24 months postoperation | 0.8±0.8※,# | 1.1±1.1※,# | 0.117 |
| VAS (leg) | |||
| 1 month postoperation | 2.7 ± 0.9※ | 3.2±0.8※ | 0.009 |
| 24 months postoperation | 0.8±0.8※,# | 0.9±0.9※,# | 0.291 |
| JOA | |||
| 1 month postoperation | 19.5±1.7※ | 18.5±2.7※ | 0.033 |
| 24 months postoperation | 25.2±2.1※,# | 25.5±1.8※,# | 0.483 |
| ODI | |||
| 1 month postoperation | (29.2±10.2)%※ | (33.6±10.0)%※ | 0.024 |
| 24 months postoperation | (11.6±6.3)%※,# | (12.0±6.2)%※,# | 0.754 |
| Modified MacNab | |||
| Perfect or Good | 48 | 46 | 0.674 |
| Fair or Poor | 2 | 4 | 0.674 |
| Interbody fusion rate | 44/50 | 45/50 | 0.749 |
| ASD rate | 6/50 | 9/50 | 0.401 |
| Complication rate | 5/50 | 4/50 | 1.000 |
ASD indicates adjacent segment degeneration;
※
Comparing with preoperation, P<0.05;
#
Comparing with 1 month postoperation, P<0.05.