Table 2.

Correlation coefficients between traditional and alternative methods of measuring medialization on radiographs and CT medialization measurements

Radiographic measurement	Pearson correlation coefficient (95% CI)	p value	Standard error of the estimate in mm
All hips (n = 39)
Traditional method	0.16 (-0.17 to 0.45)	0.34	3
Alternative method	0.71 (0.51-0.84)	<0.001	2
Good radiographs only (n = 18)
Traditional method	0.26 (-0.06 to 0.53)	0.30	3
Alternative method	0.80 (0.64-0.89)	<0.001	2