Table 2.
Comparison of clinical outcome between TLIF and OLIF surgery group (exclusion of additional posterior decompression surgery)
| Variable | TLIF surgery group (n = 25) | OLIF surgery group (n = 23) | p-value |
|---|---|---|---|
| ODI | |||
| Preoperative | 28.0 ± 7.7 | 25.6 ± 5.9 | 0.219 |
| 6 Months after surgery | 16.8 ± 6.5 | 14.8 ± 4.2 | 0.225 |
| 12 Months after surgery | 16.0 ± 7.3 | 12.6 ± 4.5 | 0.057 |
| 24 Months after surgery | 17.1 ± 6.3 | 13.1 ± 4.4 | 0.061 |
| VAS-leg | |||
| Preoperative | 7.3 ± 1.7 | 6.4 ± 1.4 | 0.075 |
| 6 Months after surgery | 3.0 ± 1.6 | 3.8 ± 1.0 | 0.056 |
| 12 Months after surgery | 2.9 ± 2.2 | 3.4 ± 1.2 | 0.329 |
| 24 Months after surgery | 3.1 ± 1.9 | 3.3 ± 1.0 | 0.313 |
| VAS-back | |||
| Preoperative | 5.0 ± 2.5 | 5.8 ± 1.2 | 0.160 |
| 6 Months after surgery | 2.6 ± 1.5 | 3.3 ± 0.8 | 0.075 |
| 12 Months after surgery | 2.5 ± 2.0 | 2.9 ± 1.1 | 0.354 |
| 24 Months after surgery | 2.7. ± 1.7 | 2.8 ± 1.4 | 0.243 |
Values are presented as mean±standard deviation.
TLIF, transforaminal lumbar interbody fusion; OLIF, oblique lumbar interbody fusion; ODI, Oswestry Disability Index; VAS, visual analogue scale.