Offset restoration in total hip arthroplasty: Important: A current review

Figure 1 X-ray both hips anteroposterior for preoperative planning. A: Offset assessment. a: Acetabular offset; b: Femoral offset/ horizontal offset; a + b: Combined offset; c: Global offset; B: Limb length discrepancy measurement-inter-teardrop line, line–the center of lesser trochanter–the difference between 2 lengths a1, a2; b: Denotes the vertical offset.