Effect on inclined medial proximal tibial articulation for varus alignment in advanced knee osteoarthritis

Journal of Experimental Orthopaedics

Table 4 Multiple linear regression analysis

Dependent variable	Independent variable	Beta	t value	p value
ΔMCT angle	ΔTibial position	0.338	3.587	0.001*
ΔMCT angle	ΔFemoral position	0.159	1.708	0.091
ΔFTA	ΔTibial position	0557	6.708	< 0.0001*
ΔFTA	ΔFemoral position	0.148	1.800	0.075
Δ M-L femoral location	ΔTibial position	0.106	1.060	0.292
Δ M-L femoral location	ΔFemoral position	−0.067	−0.670	0.504
ΔWB line passing point	ΔTibial position	0.701	9.833	< 0.0001*
ΔWB line passing point	ΔFemoral position	0.097	1.360	0.177

MCT = medial compartment in the proximal tibia, WB = weight-bearing, Δ difference = difference in each parameter between non-WB and WB conditions, tibial position = the relative angle of weight-bearing line to x–axis in the tibial coordinate system, femoral position = the relative angle of weight-bearing line to a surgical epicondylar axis, 95%CI = 95% confidence interval, *Significant difference = p < 0.01