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. 2015 May 30;473(12):3716–3722. doi: 10.1007/s11999-015-4373-z

Fig. 2.

Fig. 2

The cranial anteversion angle was measured as an angle formed by a line connecting the anterior and posterior edges of the acetabulum and a sagittal line on the axial plane 5 mm caudal to the acetabular roof. The anteversion group was defined as comprising hips with a positive cranial anteversion angle. The retroversion group was defined as those in which this angle was negative.