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Table 7 Recommendations for surgeons to treat patients with long-term unreduced hip joint dislocation, secondary osteoarthritis and pseudoarthrosis

From: Diagnosis, preoperative evaluation, classification and total hip arthroplasty in patients with long-term unreduced hip joint dislocation, secondary osteoarthritis and pseudoarthrosis

Classification Acetabular component Femoral component Soft-tissue release
Position Prosthesis Bone grafting
Type A Original acetabulum Standard acetabular cup and liner Commonly unnecessary Commonly standard femoral stem Commonly unnecessary or limited soft-tissue release, after removal of the pseudoacetabulum (osteophytes)
Type B1 Original acetabulum Standard acetabular cup and liner Structural bone graft (or augmentation)
Type B2 Original acetabulum Acetabular cup for DDH (a small-size acetabular cup is commonly chosen) Commonly unnecessary
Type C Original acetabulum (or position of the pseudoacetabulum) Acetabular component for revision (or placement of the cup in retroversion with application of a restrictive liner) Structural bone graft (or augmentation)
  1. DDH developmental dysplasia of the hip