| Â | CVI group (n = 442) | PSI group (n = 815) | p value |
|---|
HKA | 180.0° (2.9) | 179.5° (2.0) | 0.001 |
FFC | 90.8° (2.1) | 90.0° (1.6) | < 0.001 |
FTC | 89.2° (1.8) | 89.4° (1.5) | 0.033 |
LFC | 87.5° (2.9) | 86.5° (2.2) | < 0.001 |
LTC | 85.6° (2.8) | 85.6° (2.4) | 0.728 |
FCRa | 2.4° (1.6) | 1.1° (0.6) | < 0.001 |
- Values are given as mean and standard deviation in parentheses
- CVI conventional instrumentation, FCR femoral component rotation, FFC frontal femoral component angle, FTC frontal tibial component angle, HKA hip-knee-ankle angle, LFC lateral femoral component angle, LTC lateral tibial component angle, PSI patient-specific instrumentation
- aCT scans for the evaluation of rotational component alignment were available for 44 cases of the CVI group, and for 94 case of the PSI group.
