Table 1. Demographic Characteristics.
Number of patients | 35 |
Sex (male/female) | 17/18 |
Age, mean (range), yrs | 67±6.5 (34-81) |
Symptom duration, mean (range), yrs | 2.0 (1-10) |
Follow-up after surgery, mean (range), months | 7 (2-15) |
BMD (young adult mean), mean (range), % | 85±5 (65-100) |
Diagnosis | |
Spondylolisthesis | 20 |
Discogenic low back pain | 4 |
Kyphoscoliosis | 11 |
Complication before surgery | |
Diabetes mellitus | 6 |
Parkinson disease | 3 |
Revision surgery | 6 |
Hemodialysis | 1 |
Number of fusion levels (OLIF) | 1 level: 26 patients |
2 levels: 4 patients | |
3 levels: 3 patients | |
4 levels: 2 patients | |
Posterior fixation (open pedicle screws, open cortical bone trajectory, or percutaneous pedicle screws) | Open PS: 8 patients |
Open CBT: 5 patients | |
PPS: 22 patients | |
Posterior decompression | Performed, 18 patients |
Not performed, 17 patients |
BMD, bone mineral density; OLIF, oblique lateral interbody fusion; PS, pedicle screws; CBT, cortical bone trajectory; PPS, percutaneous pedicle screws.