Table 7 Recommendations for surgeons to treat 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) | ||