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The value of sagittal diameter dimensions associated with congenital cervical stenosis and its sensitivity and specificity at each level
| Cervical level | Lower limit associated with cervical stenosis (mm) | Sensitivity (%) | Specificity (%) |
|---|---|---|---|
| C3 | 12.5 | 100 | 96.5 |
| C4 | 13 | 90 | 90 |
| C5 | 13 | 90 | 94 |
| C6 | 13 | 85 | 93 |
| C7 | 13 | 92 | 96.5 |
