The anteroposterior axis of the tibia is approximately perpendicular to the anterior pelvic plane in the standing position in healthy Japanese subjects

Table 2 Correlation coefficient between each parameter in the participants

	CTA (deg)	KRA (deg)	APP-FNA (deg)	APP-CEA (deg)	APP-tibia AP axis (deg)
FNA (deg)	0.175	0.071	0.578*	−0.346*	−0.083
FNA (deg)	0.075	0.113	0.410*	−0.337*	−0.007
CTA (deg)		0.167	0.068	0.174	0.041
CTA (deg)		−0.223	0.128	0.185	0.080
KRA (deg)			−0.223	−0.245	−0.021
KRA (deg)			0.050	−0.246	−0.236
APP-FNA (deg)				−0.281*	0.177
APP-FNA (deg)				−0.377*	−0.056
APP-CEA (deg)					0.144
APP-CEA (deg)					0.013

Upper row: male, Lower row: female
AP anteroposterior, APP: anterior pelvic plane, APP-CEA clinical epicondylar axis relative to APP, APP-FNA FNA relative to APP, CTA condylar twist angle, FNA femoral neck anteversion, KRA knee rotation angle
*p < 0.01

ISSN: 1749-799X