Table 1.
Patient demographic data
| SA-OLIF (n = 20) | OLIF + LP (n = 21) | p value | |
|---|---|---|---|
| Age, years | 61.4 ± 12.0 | 59.0 ± 9.5 | 0.489 |
| Gender, female/male | 8/12 | 7/14 | 0.678 |
| BMI, kg/m2 | 25.2 ± 3.6 | 25.5 ± 3.1 | 0.737 |
| BMD, mg/cm3 | 89.2 ± 25.4 | 96.1 ± 13.0 | 0.279 |
| Preop diagnosis, n (%) | |||
| Degenerative disc disease with spinal stenosis | 10 (50.0) | 10 (47.6) | 0.817 |
| Degenerative spondylolisthesis | 6 (30.0) | 8 (38.1) | |
| Other diseases | 4 (20.0) | 3 (14.3) | |
| Lumbar segmental instability | 1 (5.0) | 2 (9.5) | - |
| Discogenic low back pain | 2 (10.0) | 1 (4.8) | |
| Adjacent segment disease | 1 (5) | 0 (0) | |
| Follow-up, months | 6.6 ± 2.9 | 6.1 ± 1.8 | 0.453 |
SA-OLIF: stand-alone oblique lumbar interbody fusion; OLIF + LP: oblique lumbar interbody fusion combined with lateral plate fixation; BMI: body mass index; BMD: bone mineral density