Table 5. Distribution of the maximum stress (MPa) of the screw-rod systems with five different defect volumes.
| Operating conditions | No defect + screw rod |
1/5 defect + screw rod |
2/5 defect + screw rod |
3/5 defect + screw rod |
4/5 defect + rod |
5/5 defects + rod |
|---|---|---|---|---|---|---|
| Vertical load | 11.6197 | 12.0869 | 12.1244 | 12.2679 | 12.9497 | 13.0215 |
| Forward flexion | 49.5652 | 49.6335 | 49.6614 | 49.6855 | 49.8033 | 50.4557 |
| Extension | 49.3582 | 49.4302 | 49.4559 | 49.4799 | 49.6072 | 50.275 |
| Right-side flexion | 66.8137 | 66.8881 | 66.8911 | 66.9698 | 67.1206 | 67.6255 |
| Left-side flexion | 66.7242 | 66.8069 | 66.8059 | 66.8816 | 67.0438 | 67.571 |
| Right rotation | 77.9848 | 78.0322 | 78.3024 | 78.6208 | 79.0391 | 81.0592 |
| Left rotation | 77.5221 | 77.5269 | 77.5897 | 77.6052 | 77.692 | 78.1414 |