Diameters of Articular pillars of typical cervical vertebrae as measured with Vernier calipers and CT measurement software (mm).
| Transverse diameter (mm) | Height (mm) | Antero-posterior diameter † (mm) | Oblique Antero-posterior diameter ‡ (mm) | |||||
|---|---|---|---|---|---|---|---|---|
| Mean (SD) | Range | Mean (SD) | Range | Mean (SD) | Range | Mean (SD) | Range | |
| Right Articular pillars | ||||||||
| Vernier caliper | 10.6 (1.5) | 7.5 – 15.4 | 20.0 (2.3) | 14.2 – 25.5 | 8.7 (1.5) | 4.4 – 12.7 | 15.0 (1.8) | 11.9 – 20.3 |
| CT software | 11.5 (1.4) | 8.2 – 16.1 | 21.1 (1.9) | 17.1 – 25.4 | 9.1 (1.2) | 6.4 – 11.5 | 14.3 (1.8) | 11.5 – 19.3 |
| Left Articular pillars | ||||||||
| Vernier caliper | 10.3 (1.3) | 6.0 – 13.2 | 20.1 (2.0) | 14.6 – 24.5 | 8.5 (1.6) | 3.9 – 11.7 | 14.8 (1.8) | 10.8 – 19.6 |
| CT software | 11.7 (1.4) | 9.4 – 14.9 | 20.9 (1.9) | 16.9 – 25.6 | 9.2 (1.2) | 7.0 – 13.3 | 14.7 (1.7) | 11.4 – 18.7 |
| All Articular pillars | ||||||||
| Vernier caliper | 10.5 (1.5) | 6.0 – 15.4 | 20.1 (2.1) | 14.2 – 25.5 | 8.6 (1.6) | 3.9 – 12.7 | 14.9 (1.8) | 10.8 – 20.3 |
| CT software | 11.6 (1.4) | 8.2 – 16.1 | 21.0 (1.9) | 16.9 – 25.6 | 9.1 (1.2) | 6.4 – 13.3 | 14.5 (1.7) | 11.4 – 19.3 |