Demographic, clinical and radiographic variables.
| Laminoplasty (n = 25) | Laminectomy with Fusion (n = 45) | p-value | |
|---|---|---|---|
| Age, (mean ± SD) | 54.88 ± 9.05 | 65.36 ± 10.08 | 0.0001 |
| Gender | 0.5870 | ||
| Male (%) | 19 (76%) | 30 (66.6%) | |
| Female (%) | 6 (24%) | 15 (32.6%) | |
| Number of levels, (mean ± SD) | 3.24 ± 1.01 | 3.44 ± 1.16 | 0.4625 |
| Sagittal alignment (mean in degrees ± SD) | 10.92 ± 7.5 | 4.578 ± 11.2 | 0.0138 |
| Lordosis (%) | 13 (52%) | 14 (31.1%) | 0.1242 |
| Straight (%) | 12 (48%) | 16 (35.6%) | 0.3228 |
| Kyphosis (%) | 0 (0%) | 15 (33.3%) | 0.0006 |
| Time between pre- and post-operative MRI, (mean in months ± SD) | 16.20 ± 19.07 | 15.62 ± 21.29 | 0.9105 |
| Time between surgery and post-operative MRI, (mean in months ± SD) | 10.08 ± 12.87 | 10.67 ± 13.4 | 0.8593 |
SD = Standard deviation.