Table 2.
Characteristics of the patients
| Variables | Total patients (n = 35) |
|---|---|
| Gender (man/woman) | 17/18 |
| Age at the surgery | 47.4 (34–55) |
| Duration of symptom (month) | 24.6 (1–240) |
| Diagnosis for surgery | |
| Degenerative spondylolisthesis | 17 |
| Isthmic spondylolisthesis | 8 |
| Lumbar foraminal stenosis | 4 |
| Lumbar canal stenosis | 2 |
| Lumbar disc herniation | 1 |
| Degenerative scoliosis | 1 |
| Relapsed lumbar disc herniation | 1 |
| Surgical method | |
| PLIF | 19 |
| TLIF | 15 |
| PF | 1 |
| Fusion segment | |
| One segment | 29 |
| Two segments | 6 |
PLIF posterior lumbar interbody fusion, TLIF transforaminal lumbar interbody fusion, PF posterior fusion