Table 3.
Statistical results of the absolute value of error between the two coordinate systems (°).
| Error between the two coordinate systems | Femoral component positioning |
Tibial component positioning |
||||
|---|---|---|---|---|---|---|
| Varus-valgus | Anteversion-retroversion | Internal-external rotation | Varus-valgus | Anteversion-retroversion | Internal-external rotation | |
| The average of the absolute value | 0.004 | 0.006 | 0.158 | 0.544 | 0.042 | 0.348 |
| The standard deviation of the absolute value | 0.020 | 0.024 | 0.186 | 0.452 | 0.076 | 0.445 |
| The maximum of the absolute value | 0.1 | 0.1 | 0.9 | 1.9 | 0.3 | 2 |
| The minimum of the absolute value | 0 | 0 | 0 | 0 | 0 | 0 |
| The median of the absolute value | 0 | 0 | 0.1 | 0.5 | 0 | 0.2 |