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A pelvis anterior-posterior radiograph demonstrates examples of LLD cup inclination measurement. Line A represents the interteardrop line. Line segment B signifies the distance between line A and the lower edge of the right lesser trochanter, while line segment C denotes the distance between line A and the lower edge of the left lesser trochanter. LLD is determined by the disparity in length between line segments B and C. Cup inclination is defined as the angle between line A and line D
