Table 4.
Univariate analysis of radiographic outcomes
| Variable | No. | Fused condition (yes or no) | p-value | Subsidence condition (yes or no) | p-value | |
|---|---|---|---|---|---|---|
| Surgery | 0.654 | 0.043* | ||||
| OLIF | 25 | 21/4 | 17/8 | |||
| OLIF-AF | 19 | 17/2 | 10/9 | |||
| OLIF-PF | 27 | 25/2 | 9/18 | |||
| Age (yr) | 0.773 | 0.390 | ||||
| > 65 | 30 | 27/3 | 17/13 | |||
| ≤ 65 | 41 | 36/5 | 19/22 | |||
| Sex | 0.259 | 0.177 | ||||
| Male | 23 | 19/4 | 9/14 | |||
| Female | 48 | 44/4 | 27/21 | |||
| Fused segment | 0.766 | 0.397 | ||||
| Single | 39 | 35/4 | 18/21 | |||
| Double | 32 | 28/4 | 18/14 | |||
| Bone density† | 0.662 | 0.432 | ||||
| Normal | 28 | 26/2 | 12/16 | |||
| Low | 43 | 37/6 | 25/18 | |||
OLIF, oblique lateral interbody fusion; OLIF-AF, OLIF combined with anterolateral screw fixation; OLIF-PF, OLIF combined with percutaneous pedicle screw fixation.
*
Statistically significant at p<0.05.
†
The bone density was presented as continuous variable based on lumbar computed tomography Hounsfield units value.