Mechanical alignment | iAssist (n = 30) | Conventional (n = 30) | P value |
---|---|---|---|
Hip-knee-ankle angle, degree | 179.7 ± 2.2 | 178.9 ± 2.9 | 0.250 |
Hip-knee-ankle angle outlier | 4 (13.3%) | 8 (26.8%) | 0.101 |
Femoral coronal alignment, degree | 89.4 ± 2.2 | 87.7 ± 2.1 | 0.003 |
Femoral coronal alignment outliner | 3 (10%) | 7 (23.3%) | 0.086 |
Tibial coronal alignment, degree | 90.1 ± 1.1 | 90.7 ± 1.5 | 0.096 |
Tibial coronal alignment outlier | 0 (0%) | 2 (6.7%) | 0.078 |
Femoral sagittal alignment, degreea | 3.8 ± 2.0 | 3.2 ± 1.9 | 0.267 |
Femoral sagittal alignment outlier | 3 (10%) | 2 (6.7%) | 0.321 |
Tibial slope, degreeb | 3.8 ± 2.3 | 3.6 ± 1.9 | 0.668 |
Tibial slope outlier | 2 (6.7%) | 2 (6.7%) | 0.5 |