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Varus angles at which a significant increase or decrease in von Mises stress began to occur in the Gruen zone
| Zone | Von Mises stress | Type A | Type B | Type C |
|---|---|---|---|---|
| Varus angle (°) | ||||
| Zone 2 | Decrease |
3°≤ (P = 0.001) |
3°≤ (P = 0.046) |
3°≤ (P = 0.007) |
| Zone 3 | Increase | (P = 0.077) |
3°≤ (P = 0.003) |
4°≤ (P = 0.002) |
| Zone 4 | Increase |
2°≤ (P = 0.017) |
2°≤ (P = 0.004) |
3°≤ (P = 0.001) |
