Specific approach to total hip arthroplasty in patients with childhood hip disorders sequelae

Figure 1 X-rays of left hip. A: Preoperative X-ray of a patient with secondary osteoarthritis of the left hip due to dysplasia. Plate and screws in the proximal femur are left from the previous surgery performed in childhood; B: Postoperative X-ray with implanted uncemented acetabular cup and femoral stem. Acetabular cup is protruding beyond the Kohler’s line inside the pelvis and secured with 3 additional screws. Lesser trochanter is brought distally to the normal level so there is no leg length discrepancy postoperatively.