Table 1.
Morphometric data (mean ± SD) comparing neutral, traction, flexion, and extension in 9 Doberman Pinschers with DA‐CSM
| SC level | Position | SCH, sag (mm) | SCH, trans (mm) | DW (mm) | SCA (mm) | SCW (mm) | VCH (mm) |
|---|---|---|---|---|---|---|---|
| C2‐C3 | Neutral | 4.40 ± 0.69 | 4.51 ± 0.65 | 4.88 ± 0.77 | 3.14 ± 0.41 | 7.99 ± 0.83 | 12.22 ± 1.61a |
| Traction | 4.36 ± 0.65 | 5.00 ± 0.77 | |||||
| Flexion | 4.50 ± 0.48 | 4.78 ± 0.44 | 5.37 ± 1.00 | 3.23 ± 0.56 | 7.85 ± 0.78 | 10.16 ± 1.18a | |
| Extension | 4.48 ± 0.44 | 4.62 ± 0.64 | 4.91 ± 0.64 | 3.38 ± 0.59 | 8.32 ± 0.62 | 11.22 ± 1.16 | |
| C3‐C4 | Neutral | 3.86 ± 0.74 | 4.28 ± 0.52 | 4.47 ± 0.53 | 3.08 ± 0.45 | 8.14 ± 0.91 | 9.99 ± 2.14 |
| Traction | 4.09 ± 0.79 | 4.90 ± 0.51 | |||||
| Flexion | 4.17 ± 0.73 | 4.56 ± 0.22 | 4.82 ± 0.73 | 3.19 ± 0.58 | 8.06 ± 1.08 | 8.49 ± 1.53 | |
| Extension | 4.09 ± 0.87 | 4.70 ± 0.49 | 4.74 ± 0.39 | 3.32 ± 0.53 | 8.14 ± 1.25 | 9.57 ± 1.31 | |
| C4‐C5 | Neutral | 4.03 ± 0.92 | 4.29 ± 0.55 | 4.77 ± 0.80 | 3.18 ± 0.60 | 8.14 ± 0.79 | 10.30 ± 0.94a |
| Traction | 4.06 ± 0.76 | 5.25 ± 0.79 | |||||
| Flexion | 4.27 ± 0.86 | 4.34 ± 0.43 | 5.38 ± 0.88 | 3.19 ± 0.48 | 7.99 ± 0.88 | 8.29 ± 1.35a | |
| Extension | 3.91 ± 1.04 | 4.36 ± 0.62 | 5.16 ± 0.63 | 3.33 ± 0.62 | 7.98 ± 1.10 | 8.48 ± 1.19 | |
| C5‐C6 | Neutral | 4.24 ± 1.10 | 4.51 ± 1.01 | 5.13 ± 0.71 | 3.59 ± 0.77 | 8.42 ± 0.95 | 9.78 ± 1.77b |
| Traction | 4.26 ± 1.12 | 5.74 ± 0.60 | |||||
| Flexion | 4.21 ± 0.98 | 4.43 ± 0.91 | 5.54 ± 0.62 | 3.57 ± 0.85 | 8.36 ± 1.40 | 8.20 ± 1.85 | |
| Extension | 3.66 ± 1.30 | 4.51 ± 1.36 | 5.37 ± 0.64 | 3.52 ± 0.85 | 7.94 ± 1.00 | 7.57 ± 2.53b | |
| C6‐C7 | Neutral | 4.01 ± 0.82 | 4.53 ± 0.72 | 4.87 ± 0.96 | 3.58 ± 0.88 | 8.37 ± 1.18 | 9.77 ± 1.89b |
| Traction | 4.01 ± 0.94 | 5.63 ± 0.88 | |||||
| Flexion | 4.08 ± 1.00c | 4.46 ± 0.90 | 5.46 ± 1.23 | 3.52 ± 1.00 | 8.29 ± 1.25 | 8.61 ± 1.38 | |
| Extension | 3.16 ± 1.26b , c | 4.59 ± 1.69 | 5.08 ± 0.94 | 3.62 ± 1.16 | 8.86 ± 1.36 | 7.63 ± 2.34b | |
| C7‐T1 | Neutral | 5.33 ± 0.39b | 5.58 ± 0.49 | 4.90 ± 0.39 | 3.28 ± 0.45 | 7.50 ± 0.47 | 14.42 ± 1.79a |
| Traction | 5.12 ± 0.67 | 5.30 ± 0.39 | |||||
| Flexion | 4.77 ± 0.56c | 4.99 ± 0.84 | 5.42 ± 0.46 | 3.16 ± 0.52 | 7.24 ± 0.87 | 12.34 ± 2.01a | |
| Extension | 5.47 ± 0.49c | 5.69 ± 0.71 | 5.28 ± 0.53 | 3.40 ± 0.46 | 7.29 ± 0.79 | 13.05 ± 2.37 |
SC, spinal cord; SCH, spinal cord height; sag, sagittal; trans, transverse; DW, disc width; SCA, spinal cord area; SCW, spinal cord width; VCH, vertebral canal height; mm, millimeters.
a
Statistically significant difference between neutral and flexion (P < .05).
b
Statistically significant difference between neutral and extension (P < .05).
c
Statistically significant difference between flexion and extension (P < .05).