Table 4.
Comparison between the patients with and without intramedullary signal intensity (ISI) regression among those with spinal cord edema due to cervical spondylosis
| ISI regression (+) (n = 6) |
ISI regression (−) (n = 11) |
p value | |
|---|---|---|---|
| Age (years) *1 | 67.5 (21) | 58 (23) | 0.84 |
| Male (%) *2 | 6 (100) | 9 (82) | 0.52 |
| Time from onset to operation (months) *1 | 7 (11) | 6 (5) | 0.477 |
| Postoperative follow-up period (months) *1 | 18.5 (44) | 24 (58) | 0.801 |
| Preoperative C2–7 range of motion (°) *1 | 33.5 (19) | 36 (12) | 0.546 |
| Preoperative segmental range of motion (°) *1 | 10.5 (6) | 9 (8) | 0.338 |
| Diameter of the spinal canal (mm) *1 | 14 (2) | 14 (2) | 0.372 |
| Preoperative JOA total score *1 | 11 (3.9) | 9 (4) | 0.363 |
| Postoperative JOA total score *1 | 14 (4.4) | 12 (2) | 0.263 |
| JOA recovery rate (%) *1 | 46.5 (31.6) | 30.0 (20.0) | 0.078 |
Data are presented as median (interquartile range) or frequencies (%)
*1 Mann–Whitney U test, *2 χ2 test
JOA: Japanese Orthopedic Association surgical outcome score