Patient demographic information.
| Patients (n = 29) | |
|---|---|
| Age (years) – mean ± SD | 59.1 ± 11.7 |
| Female – n (%) | 20 (69.0) |
| Previous lumbar surgery – n (%) | 6 (20.7) |
| Diagnosis | |
| Degenerative disc disease | 23 (79.3) |
| Listhesis | 8 (27.6) |
| Stenosis | 6 (20.7) |
| De novo scoliosis | 3 (10.3) |
| Preoperative symptoms – n (%) | |
| Low back pain | 26 (89.7) |
| Radiculopathy | 25 (86.2) |
| Other1 | 8 (27.6) |
Abbreviations: n, number of patients; SD, standard deviation.
↵1 ”Other” preoperative symptoms include: neurogenic claudication, palsy, and/or motor deficit.