Table 4.
Comparisons of the two groups divided by reference point of anterior compression of the spinal cord (anterior length: 0 mm, 1 mm or 2 mm). When the patients were sub-grouped by anterior cord length of 1 mm at the maximal compression segment, the patients with an anterior length of <1 mm had significantly lower scores in each of four sections and the total JOA scores than those with an anterior cord length of ≥1 mm (p < 0.05), but the differences were scarce when the patients were divided by the anterior cord length of 0 or 2 mm (UEF: upper extremity function, and LEF: lower extremity function).
| Subgroups (Anterior Length) |
Number of Patients |
JOA-UEF | JOA-LEF | JOA-Sesory | JOA-Bladder Function | JOA Total |
|---|---|---|---|---|---|---|
| ≥0 mm | 145 | 2.6 ± 1.1 | 3.2 ± 1.2 | 4.9 ±1.3 | 2.7 ±0.5 | 13.4 ± 3.1 |
| <0 mm | 38 | 2.4 ± 1.1 | 2.9 ± 1.3 | 4.6 ± 1.4 | 2.5 ± 0.8 | 12.4 ± 3.4 |
| p-value | 0.475 | 0.090 | 0.252 | 0.039 * | 0.083 | |
| ≥1 mm | 91 | 2.8 ± 1.1 | 3.4 ± 1.0 | 5.0 ± 1.2 | 2.8 ± 0.5 | 14.0 ± 2.9 |
| <1 mm | 92 | 2.3 ± 1.1 | 2.9± 1.3 | 4.6± 1.4 | 2.6 ± 0.7 | 12.4 ± 3.3 |
| p-value | 0.001 * | 0.004 * | 0.018 * | 0.020 * | <0.001 * | |
| ≥2 mm | 21 | 2.6 ± 1.0 | 3.4 ± 1.1 | 4.8 ± 1.3 | 2.8 ± 0.5 | 13.5 ± 3.2 |
| <2 mm | 162 | 2.5 ± 1.2 | 3.1 ± 1.2 | 4.8 ± 1.5 | 2.7 ± 0.6 | 13.1 ± 3.1 |
| p-value | 0.744 | 0.154 | 0.962 | 0.861 | 0.353 |
*: p < 0.05.