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Change in von Mises stress ratio concerning the 0° varus angle in Gruen’s zone with increasing varus angle
| Zone | Von Mises stress | Type A | Type B | Type C |
|---|---|---|---|---|
| Varus angle (°) | ||||
| Zone 2 | Decrease |
3°≤ (P = 0.026) |
4°≤ (P = 0.022) |
3°≤ (P = 0.002) |
| Zone 3 | Increase | (P = 0.118) |
3°≤ (P = 0.027) |
4°≤ (P = 0.034) |
| Zone 4 | Increase | (P = 0.483) |
4°≤ (P < 0.001) |
5°≤ (P = 0.012) |
