Table 3. Radiologic outcomes.
| Trauma group | Nontrauma group | p Value | |
|---|---|---|---|
| Cervical angle | |||
| Initial | −8.28 ± 7.37 | −11.29 ± 8.93 | 0.130 |
| Last | −4.43 ± 7.96 | −7.59 ± 9.55 | 0.285 |
| Cervical ROM | |||
| Initial | 29.00 ± 14.19 | 34.92 ± 12.37 | 0.081 |
| Last | 19.16 ± 18.01 | 21.55 ± 10.40 | 0.532 |
| Type of OPLL (%) | 0.670 | ||
| Continuous | 1 (2.94) | 5 (7.14) | |
| Segmental | 6 (17.64) | 13 (18.57) | |
| Mixed | 19 (55.88) | 31 (44.28) | |
| Other | 8 (23.52) | 20 (28.57) | |
| Narrowest SAC (mm) | 5.78 ± 1.29 | 6.52 ± 1.50 | 0.028 |
| Presence of HIS (%) | 20 (58.82) | 40 (57.14) | 0.408 |
| Length of HIS (mm) | 13.25 ± 10.33 | 10.03 ± 9.29 | 0.221 |
Abbreviations: HIS, high signal intensity; OPLL, ossification of the posterior longitudinal ligament; ROM, range of motion; SAC, space available for the spinal canal.