Femoral Valgus Correction Angle for the Intramedullary Alignment Rod Is Strongly Associated with Femoral Lateral Bowing in Japanese Patients with Varus Knee Osteoarthritis Undergoing Total Knee Arthroplasty

Table 2

Correlations between assessed variables.

		VCA for the IM rod	Age	Female	BMI	Femoral offset	FBA	MA-DFC angle	MA-SEA angle
VCA for the IM rod
r		1.00
Age
r		0.25	1.00
		<0.01
Female
r		0.17	−0.04	1.00
		<0.01	0.26
BMI
r		−0.15	−0.39	0.00	1.00
		<0.01	<0.01	0.48
Femoral offset
r		0.30	−0.03	−0.21	−0.10	1.00
		<0.01	0.33	<0.01	<0.05
FBA
r		0.79	0.27	0.19	−0.12	−0.13	1.00
		<0.01	<0.01	<0.01	<0.05	<0.05
MA-DFC angle
r		−0.51	−0.10	0.02	0.10	−0.16	−0.33	1.00
		<0.01	<0.05	0.362	<0.05	<0.01	<0.01
MA-SEA angle
r		−0.34	−0.07	−0.01	0.03	−0.13	−0.24	0.41	1.00
		<0.01	0.101	0.41	0.287	<0.01	<0.01	<0.01

r: correlation coefficient, VCA for the IM rod: femoral valgus correction angle for the intramedullary alignment rod, BMI: body mass index, FBA: femoral lateral bowing angle, MA-DFC angle: medial angle between the FMA and the DFC, FMA: femoral mechanical axis, DFC: the line that connects the distal margins of the medial and lateral femoral condyles, MA-SEA angle: medial angle between the FMA and the SEA, SEA: surgical epicondylar axis.