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Total hip arthroplasty in congenital dislocated hips
Clinical Orthopaedics and Related Research
|November 1, 1981
Summary
Total hip arthroplasty for congenital hip dislocation can lead to associated issues like knee malalignment and leg-length discrepancy. Careful preoperative planning and component selection are crucial for successful outcomes in these complex cases.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Congenital hip dislocation presents complex challenges for total hip arthroplasty.
- Associated musculoskeletal abnormalities can impact surgical outcomes.
Observation:
- Total hip arthroplasty in congenital dislocation may correlate with ipsilateral knee malalignment, leg-length inequality, pelvic obliquity, and lumbosacral spine changes.
- Preoperative planning utilizing computerized tomography (CT) scans is essential for optimal component placement and sizing.
Findings:
- Late failure is primarily attributed to stem or socket loosening, not polyethylene wear.
- Femoral component design must ensure a precise fit within the femoral canal and proximal femur.
- Surgical technique focuses on achieving complete socket coverage, with bone grafting beneficial for revisions.
Implications:
- Careful consideration of component orientation, joint stability, and muscle function is vital.
- Total hip arthroplasty offers a treatment option for elderly patients with refractory, degenerated, dislocated hips.
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