Table 4 Differences of components’ alignment between measurements using the traditional mechanical axis or the implant-based axis
Component | Plane | Traditional mechanical axis (degrees) | Implant-based axis (degrees) | Difference | p value | |
|---|---|---|---|---|---|---|
Mean | Range | |||||
Femoral | Coronala | -0.28 | -0.19 | 0.08 | -0.55, 0.27 | < 0.001 |
Sagittalb | 1.42 | 3.11 | 1.70 | -2.44, -0.36 | < 0.001 | |
Tibial | Coronala | 1.03 | 1.60 | 0.56 | -2.11, 1.04 | < 0.001 |
Sagittalc | 3.18 | 3.38 | 0.19 | -1.64, 1.22, | 0.0055 | |