Table 2.

Evaluation parameters

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

LFC Lateral femoral condyle, MFC Medial femoral condyle, PTS Posterior tibial slope

FTA Femorotibial angle, HKA Hip knee ankle angle, PP Passing point

WB Weight bearing, ML Medial–lateral; AP = Anterior–posterior