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Failure rate according to rotational alignment of the tibial component
| Alignment | No. of failures | Failure rate | P-value |
|---|---|---|---|
| Normal (N = 2,490) (2–5° external rotation) | 1 | 0.04 % | Reference |
| Less than 2° external rotation (N = 413) | 27 | 6.5 % | <0.0001 |
| Greater than 5° external rotation (N = 145) | 2 | 1.4 % | 0.034 |
