Table 2.
Influence of intervertebral disk location on measured intervertebral disk width
| Intervertebral disk space | Mean width (in mm) | p-value C2-C3 | p-value C3-C4 | p-value C4-C5 | p-value C5-C6 | p-value C6-C7 |
|---|---|---|---|---|---|---|
| C2-C3 |
5.36 |
NA |
0.0045* |
<.0001* |
<.0001* |
0.0008* |
| C3-C4 |
5.53 |
0.0045* |
NA |
0.0019* |
0.0207 |
0.0561 |
| C4-C5 |
5.79 |
<0.0001* |
0.0019* |
NA |
0.438 |
0.728 |
| C5-C6 |
5.72 |
<0.0001* |
0.0207 |
0.438 |
NA |
0.824 |
| C6-C7 | 5.75 | 0.0008* | 0.0561 | 0.728 | 0.824 | NA |
Mean overall intervertebral disk width and p-value for each assessed intervertebral disk space. Significant differences are indicated by (*). Significance level for multiple comparisons is adjusted by Bonferroni’s method.