Table 2 Validation of the intact cervical model
Panjiabi | Ito | Zhang | Our research | |
|---|---|---|---|---|
Flexion and extension | ||||
C0–C1 | 27.4 ± 3.7 | 27.5 ± 7.7 | 26 | 28.82 |
C1–C2 | 24.4 ± 5.6 | 15.3 ± 4.2 | 20 | 16.02 |
C2–C3 | 6.8 ± 1.4 | 9.0 ± 4.0 | 10 | 6.57 |
C3–C4 | 8.2 ± 4.7 | 10.0 ± 4.5 | 9 | 8.59 |
C4–C5 | 9.8 ± 4.0 | 14.3 ± 5.5 | 7.7 | 7.34 |
C5–C6 | 10.4 ± 5.2 | 14.5 ± 8.0 | 7.7 | 6.3 |
C6–C7 | 8.0 ± 4.3 | 15.2 ± 3.1 | 7.5 | 7.86 |
Lateral bending | ||||
C0–C1 | 9.1 ± 1.5 | 7.7 ± 2.1 | 7.8 | 10 |
C1–C2 | 6.5 ± 2.3 | 11.6 ± 10.4 | 7.2 | 14.69 |
C2–C3 | 9.6 ± 1.8 | 9.7 ± 4.3 | 4.5 | 12.88 |
C3–C4 | 9.0 ± 1.9 | 8.6 ± 5.9 | 3.2 | 9.75 |
C4–C5 | 9.3 ± 6.5 | 8.1 ± 3.8 | 2.8 | 7.4 |
C5–C6 | 6.5 ± 1.5 | 4.9 ± 2.1 | 2.6 | 4.07 |
C6–C7 | 5.4 ± 1.5 | 6.8 ± 3.3 | 2.2 | 6.91 |
Axial rotation | ||||
C0–C1 | 9.9 ± 3.0 | 13.0 ± 5.5 | 5 | 13 |
C1–C2 | 56.7 ± 4.8 | 63.3 ± 13.0 | 56.5 | 60 |
C2–C3 | 3.3 ± 1.2 | 6.6 ± 4.8 | 6 | 4.8 |
C3–C4 | 5.1 ± 1.2 | 9.5 ± 4.9 | 4.5 | 5.03 |
C4–C5 | 6.8 ± 1.3 | 11.5 ± 3.8 | 4.8 | 6.53 |
C5–C6 | 5.0 ± 1.0 | 7.8 ± 4.1 | 4.8 | 3.34 |
C6–C7 | 2.9 ± 0.8 | 6.5 ± 3.3 | 5 | 3.06 |