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Alternative bearing surfaces for total joint arthroplasty
L M Jazrawi1, F J Kummer, P E DiCesare
1Department of Orthopaedic Surgery, Hospital for Joint Diseases Orthopaedic Institute, New York, NY 10003, USA.
Summary
New bearing surfaces for total joint arthroplasty generate less polyethylene debris, potentially reducing bone loss and loosening. This may improve implant survival, particularly for younger patients.
Area of Science:
- Biomaterials Science
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Particulate debris from metal-on-polyethylene implants causes osteolysis and loosening in total joint arthroplasty.
- This response drives the need for improved bearing materials and alternative articulations.
Purpose of the Study:
- To review the potential benefits of alternative bearing surfaces in total joint arthroplasty.
- To assess their role in mitigating periprosthetic osteolysis and improving implant survivorship.
Main Methods:
- Literature review of studies comparing metal-on-polyethylene with alternative bearing surfaces (ceramic-polyethylene, metal-metal, ceramic-ceramic).
- Analysis of clinical and laboratory data on friction, wear rates, and biologic response.
Main Results:
- Alternative bearing surfaces exhibit lower friction and wear rates compared to metal-on-polyethylene.
- These materials generate less particulate debris, reducing the biologic response.
Conclusions:
- Alternative bearing surfaces show promise in decreasing periprosthetic osteolysis and aseptic loosening.
- They may enhance long-term total joint arthroplasty survivorship, especially in younger, active patients.