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Maximum compressive stresses on the anterior column of the UIV and UIV + 1 vertebrae at various T1 tilts on T9 UIV model with or without posterior tethers.
| Level | T8 (UIV + 1) [MPa] | T9 (UIV) [MPa] | ||||
|---|---|---|---|---|---|---|
| T1 tilt | Control | T9 UIV | T9 + Tether | Control | T9 UIV | T9 + Tether |
| 0 deg. | 3.88 | 6.62 | 7.01 | 4.35 | 5.46 | 5.05 |
| 20 deg. | 7.12 | 8.40 | 7.63 | 3.15 | 6.52 | 4.79 |
| 40 deg. | 8.98 | 10.71 | 9.39 | 3.35 | 8.73 | 5.61 |
