Table 2 Evaluation parameters
From: The morphology of the femoral posterior condyle affects the external rotation of the femur
Parameters | ||
|---|---|---|
Mean ± SD | 95%CI | |
External rotation angle | ||
0–20° knee flexion | 9.2 ± 3.7 | 8.0–10.4 |
20–120° knee flexion | 12.8 ± 6.2 | 10.9–14.8 |
0–120° knee flexion | 22.0 ± 5.7 | 20.2–23.8 |
Femoral morphology | ||
LFC inclination angle | 7.8 ± 7.2 | 5.6–10.1 |
MFC inclination angle | 0.8 ± 5.9 | -1.1–2.7 |
Ratio of radii of posterior condyles | 1.0 ± 0.1 | 1.0–1.0 |
Spherical Condylar Angle | 1.8 ± 1.0 | 1.5–2.1 |
Posterior Condylar Angle | 3.1 ± 1.3 | 2.7–3.5 |
Tibial morphology | ||
Medial PTS | 9.9 ± 2.5 | 9.1–10.7 |
Lateral PTS | 6.8 ± 3.2 | 5.8–7.8 |
Difference of medial and lateral PTS | 3.1 ± 3.1 | 2.1–4.0 |
Alignment | ||
Tibiofemoral rotation angle | 8.6 ± 6.6 | 6.8–10.4 |
3DFTA in coronal plane | 178.1 ± 2.5 | 177.4–179.0 |
3DHKA in coronal plane | 182.1 ± 2.5 | 181.4–182.8 |
PP of the WB line < ML > | 27.6 ± 19.9 | 21.3–33.8 |
PP of the WB line < AP > | -7.4 ± 82.9 | -33.6–18.8 |