Measurements of the spinal cord*
| Patients | Controls† | P Value | ||
|---|---|---|---|---|
| Mean ± SD | 95% CL | Mean ± SD | ||
| Anteroposterior diameter (mm) | ||||
| C2 | 5.6 ± 1.0 | 5.0–6.2 | 9.5 ± 0.6 | <.001 |
| T6 | 4.4 ± 0.7 | 4.0–4.9 | 7.8 ± 0.7 | <.001 |
| T11 | 4.8 ± 0.9 | 4.3–5.3 | 8.3 ± 1.1 | <.001 |
| Coronal diameter (mm) | ||||
| C2 | 10.2 ± 0.8 | 9.7–10.7 | 13.3 ± 1.1 | <.001 |
| T6 | 6.8 ± 0.6 | 6.5–7.2 | 10.2 ± 0.7 | <.001 |
| T11 | 8.1 ± 0.9 | 7.5–8.7 | 10.6 ± 1.5 | <.001 |
| Level cross-sectional area (mm2) | ||||
| C2 | 46.5 ± 8.4 | 40.7–52.3 | 93.9 ± 11.4 | <.001 |
| T6 | 24.4 ± 4.9 | 21.2–27.7 | 59.9 ± 7.4 | <.001 |
| T11 | 31.7 ± 7.1 | 26.5–37.0 | 78.4 ± 21.1 | <.001 |
Note:—CL indicates confidence limit.
* Student 2-tailed t test was used for comparisons.
† Measurements of the controls from Krabbe et al.10