Table 3.
Correlation analysis between different factors and post-op HKAA.
| Coefficient of correlation (r) | p-value | |
|---|---|---|
| Tibial resection with saw blade thicknessa | -0.072 | 0.502 |
| Insert sizea | -0.048 | 0.654 |
| Tibial implant thicknessa | -0.048 | 0.654 |
| Spigota | -0.012 | 0.909 |
| Femoral implant distal thicknessa | -0.096 | 0.367 |
| Medial Tibial Joint Line Change (MTJLC)a | 0.062 | 0.563 |
| Medial Femoral Joint Line Change (MFJLC) | 0.005 | 0.962 |
| Simulated Medial Tibial Joint Line Change (sMTJLC) | 0.162 | 0.127 |
| Simulated Medial Femoral Joint Line Change (sMFJLC) | 0.052 | 0.623 |
| Pre-OP HKAA | 0.777 | <0.001 |
| HKAA change | 0.293 | 0.005 |
| Pre-OP LDFA | -0.549 | <0.001 |
| Post-OP LDFA | -0.389 | <0.001 |
| LDFA change | 0.063 | 0.555 |
| Pre-OP MPTA | 0.637 | <0.001 |
| Post-OP MPTA | 0.297 | 0.005 |
| MPTA change | -0.254 | 0.016 |
BMI, Body Mass Index; HKAA, Hip-Knee-Ankle Angle; LDFA, Lateral Distal Femoral Angle; MPTA, Medial Proximal Tibial Angle.
a
Using Spearman's ρ for nonparametric data.