Fig. 4From: Effects of lower limb and pelvic pin positions on leg length and offset measurement errors in experimental total hip arthroplastyLeg length and offset measurement errors in relation to internal rotation–external rotation. The limb is moved from 30° internal rotation to 30° external rotation. P1, pelvic pin position in the iliac tubercle; P2, pelvic pin position in the iliac crest in line with the longitudinal axis of the femur; LL, leg length; OS, offsetBack to article page