Table 5 Comparison between groups with and without radiolucent line (RLL)
Without RLL (N = 329) | With RLL (N = 33) | P value | |
|---|---|---|---|
Hip–knee–ankle angle(°) | |||
Preoperative | −171.8 ± 5.9 | −169.1 ± 3.6 | 0.01 |
Postoperative | −179.0 ± 2.3 | −179.1 ± 2.1 | 0.76 |
Preoperative MPTA (°) | 85.0 ± 2.7 | 83.7 ± 2.0 | 0.01 |
Implant alignment (°) | |||
α | 94.5 ± 2.3 | 94.8 ± 1.8 | 0.56 |
β | 90.0 ± 1.6 | 90.0 ± 1.2 | 0.98 |
γ | 0.8 ± 2.9 | 0 ± 3.3 | 0.12 |
Φ | 87.0 ± 2.4 | 86.6 ± 1.6 | 0.34 |
WOMAC score | |||
Preoperative | 53.6 ± 11.1 | 51.7 ± 11.7 | 0.55 |
Postoperative | 9.1 ± 13.5 | 3.1 ± 4.7 | 0.22 |
Range of motion | |||
Preoperative extension | 9.0 ± 15.1 | 9.4 ± 12.5 | 0.99 |
Preoperative flexion | 118.8 ± 16.3 | 118.8 ± 16.3 | 0.85 |
Postoperative extension | 0.4 ± 1.6 | 0.9 ± 1.9 | 0.67 |
Postoperative flexion | 136.7 ± 8.5 | 137.4 ± 5.2 | 0.18 |