Table 5.

Multiple linear regression analysis of the association between dependent variable (popliteal crease obliquity angle) and independent variables (radiologic measurements).

Associated Variable	Regression Coefficient	p-Value
HKA	0.468	0.0001
Multiple regression equation	PCOA = 104.754 + 0.468 HKA
Not associated variables	MPTA, mLDFA, JLCA, MFCA/TEA, PCA/TEA

HKA—hip-knee-ankle axis, MPTA—medial proximal tibial angle, mLDFA—mechanical lateral distal femoral angle, JLCA—joint-line convergence angle, MFCA/TEA—mid-flexion condylar axis/trans-epicondylar axis, PCA/TEA—posterior condylar axis/trans-epicondylar axis, PCOA—popliteal crease obliquity angle.