| Axial pain (n = 24) | No axial pain (n = 64) | P value |
---|---|---|---|
Course of disease (months) | 11.03 ± 2.45 | 11.98 ± 4.13 | 0.294 |
Operation time (min) | 96.9 ± 16.5 | 103.1 ± 30.6 | 0.348 |
Surgical option | Â | Â | 0.187 |
 ACDF | 9 | 38 |  |
 ACCF | 1 | 2 |  |
 ACCDF | 14 | 24 |  |
Superior fusion segment | Â | Â | 0.499 |
 C3–6 | 15 | 34 |  |
 C4–7 | 8 | 29 |  |
 C3–7 | 1 | 1 |  |
Incision length (cm) | 8.87 ± 0.87 | 9.25 ± 1.19 | 0.156 |
Blood loss (ml) | 253.5 ± 19.2 | 266.3 ± 30.0 | 0.055 |
Presence of IHSI on MRI (yes/no) | 5/19 | 10/54 | 0.563 |