The Effect of Position on Radiographic Angle Measurements of the Lower Extremities

Table 2

Comparison of the effect of rotation on angle measurement between groups.

Classification		Difference of angle within 18° rotation
					Tukey HSD
HKAA (°)	Neutral (1)		9.650	<0.001	,
	Varus (2)				,
	Valgus (3)
	Flexion (4)
LDFA (°)	Neutral		0.890	0.448
	Varus
	Valgus
	Flexion
MPTA (°)	Neutral		1.723	0.166
	Varus
	Valgus
	Flexion
FVA (°)	Neutral		1.238	0.299
	Varus
	Valgus
	Flexion

SD: standard deviation; HKAA: hip-knee-ankle angle; LDFA: lateral distal femoral angle; MPTA: medial proximal tibial angle; FVA: femoral valgus angle. The significance threshold for one-way analysis of variance (ANOVA) was set at . Tukey’s honestly significant difference (HSD) was used for post hoc analysis.