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ICLH double-cup arthroplasty, 1980-1987
L Cotella1, G T Railton, D Nunn
1Department of Orthopaedic Surgery, London Hospital, Whitechapel, England.
The Journal of Arthroplasty
|December 1, 1990
Summary
This study found high revision rates and loosening signs in hip surface arthroplasties, suggesting current materials are inadequate for this procedure. Further research into hip replacement materials is warranted.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
- Histopathology
Background:
- Hip surface arthroplasty is a surgical procedure aimed at preserving bone stock.
- Previous experience with double-cup arthroplasties has informed modifications to the technique.
- Assessing the long-term outcomes and failure modes of these modified arthroplasties is crucial.
Observation:
- High overall revision rate (23.3%) for metal femoral cups.
- Significant radiological signs of loosening (31.8%) in metal femoral cups.
- No significant difference in revision rates or clinical outcomes between cemented and uncemented acetabular components.
Findings:
- Femoral loosening was associated with an erosive cellular response.
- Excellent clinical results were observed in hips without loosening.
- The study highlights substantial long-term complications with surface arthroplasty.
Implications:
- Current surface arthroplasty techniques and materials demonstrate poor long-term survivability.
- The findings strongly suggest abandoning surface arthroplasty of the hip with existing materials.
- Further research into alternative hip reconstruction methods is warranted.