Table 2.

Differences between measured and reference anteversions in pelvis and hip-centered AP radiographs

Measurement method		Mean ± SD difference from reference anteversion	Maximum difference from reference anteversion	p value
Pradhan et al. [13]	Pelvis AP	1.62 ± 1.54	5.43	0.845
	Hip-centered AP	−3.11 ± 1.14	−4.83	0.629
Lewinnek et al. [1]	Pelvis AP	2.84 ± 1.59	6.61	0.358
	Hip-centered AP	−2.91 ± 1.56	−5.34	0.521
Widmer et al. [14]	Pelvis AP	−7.10 ± 3.96	−14.46	0.061
	Hip-centered AP	−15.66 ± 3.80	−21.13	< 0.001
Liaw et al. [15]	Pelvis AP	2.52 ± 1.59	6.42	0.763
	Hip-centered AP	1.37 ± 1.73	4.31	0.692
Hassan et al. [16]	Pelvis AP	− 12.95 ± 9.71	−33.97	< 0.001
	Hip-centered AP	−18.11 ± 7.59	−30.9	< 0.001
Ackland et al. [17]	Pelvis AP	−10.15 ± 6.73	− 24.24	< 0.001
	Hip-centered AP	−13.87 ± 5.48	−28.89	< 0.001

AP anteroposterior, SD standard deviation