Document Detail


Nonresorbable polymers in bone surgery.
MedLine Citation:
PMID:  11270077     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Sufficient strength and stiffness, biocompatibility and long-term stability are important criteria that polymers have to fulfill for successful implant applications in bone surgery. An additional requirement is sterilization without degradation of the polymer properties. Ultra-high molecular weight polyethylene is used as a carrier material in joint replacement components because of good wear and damping properties. Nevertheless, reduction of wear is still a major challenge in polyethylene research as wear particles are responsible for early loosening of prosthetic devices. Acrylic bone cement is used for the fixation of artificial joints, providing an immediate and strong fixation of the implant. Possible problems with this bone cement are the residual (toxic) monomers and the high curing temperature that may cause thermal bone necrosis. Polyacetal resins are implantable high performance polymers. Due to their high chemical and mechanical resistance, they are used in joint replacement components and other long-term implants. Polyetheretherketone is a new and even more stable high performance polymer. Due to its stability at sterilization temperatures and under irradiation, PEEK is intended to replace POM in future. PEEK is available in a "medical grade" quality suitable for long-term implantation.
Authors:
L Eschbach
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Injury     Volume:  31 Suppl 4     ISSN:  0020-1383     ISO Abbreviation:  Injury     Publication Date:  2000 Dec 
Date Detail:
Created Date:  2001-03-28     Completed Date:  2001-04-05     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  0226040     Medline TA:  Injury     Country:  England    
Other Details:
Languages:  eng     Pagination:  22-7     Citation Subset:  IM    
Affiliation:
Dr Robert Mathys Foundation, Bischmattstr. 12, CH-2544 Bettlach.
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MeSH Terms
Descriptor/Qualifier:
Bone Cements / chemistry*
Humans
Joint Prosthesis*
Molecular Weight
Polymers / chemistry*
Prosthesis Design
Chemical
Reg. No./Substance:
0/Bone Cements; 0/Polymers

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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