Table 1.
Patient characteristics
| Number | 27 |
| Age (years) | 70.3±6.8 |
| Sex | |
| Male | 2 |
| Female | 25 |
| Height (cm) | 150.0±8.7 |
| Weight (kg) | 53.1±10.4 |
| Body Mass Index (kg/m2) | 23.5±3.5 |
| Bone density (T-score in lumbar spine) | -1.9±1.1 |
| Levels for OLIF (cases) | |
| L2/3 | 25 |
| L3/4 | 26 |
| L4/5 | 26 |
| Number of OLIF levels | 2.8±0.4 |
| 1 level (n) | 0 |
| 2 levels (n) | 6 |
| 3 levels (n) | 21 |
| Number of levels for posterior fusion surgery | 8.3±0.5 |
| Follow-up period (months) | 46.8±16.6 |
Twenty-seven patients (2 men, 25 women) with 75 OLIF levels and a minimum follow-up of 2 years were included in this study. OLIF was performed for 2.8 ± 0.4 spinal levels combined with PSF for 8.3 ± 0.5 levels in patients with mean 70.3 years of age and -1.9 of T-score