Abstract |
The tissue reaction to implanted materials and their wear products is important for the long-term fixation of a total hip replacement (THR). Recent reports indicate a relatively high incidence of aseptic loosening with Christiansen total hip prostheses. We examined tissue reactions to wear products in two groups of prostheses: 16 Christiansen prostheses with polyacetal ( Delrin) sockets, and 18 Charnley-Müller total hip prostheses with ultrahigh-molecular-weight polyethylene (UHMWP) sockets. Specimens from these 34 patients were compared in a combined qualitative and semiquantitative morphological study. We saw similar histological changes in specimens of both groups, but specimens from the bone-cement interfaces of the acetabulum and femur shaft in the polyacetal group showed more inflammation and necrosis.
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Authors | E B Mathiesen, J U Lindgren, F P Reinholt, E Sudmann |
Journal | Journal of biomedical materials research
(J Biomed Mater Res)
Vol. 21
Issue 4
Pg. 459-66
(Apr 1987)
ISSN: 0021-9304 [Print] United States |
PMID | 3294838
(Publication Type: Comparative Study, Journal Article)
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Chemical References |
- Acetals
- Biocompatible Materials
- Polyethylenes
- Polymers
- polyacetal
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Topics |
- Acetals
- Aged
- Biocompatible Materials
- Connective Tissue
(pathology)
- Female
- Foreign-Body Reaction
(etiology, pathology)
- Hip Joint
(pathology)
- Hip Prosthesis
- Humans
- Male
- Middle Aged
- Molecular Weight
- Necrosis
- Polyethylenes
(adverse effects)
- Polymers
- Prosthesis Failure
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