Summary
Highly cross-linked ultra high-molecular-weight polyethylene has shown great promise as an orthopedic bearing in total hip replacements. However, the enhanced resistance to plastic deformation that benefits wear behavior comes at the expense of other mechanical properties. Ultimate tensile strength, ductility, modulus, toughness, and crack propagation resistance are degraded at high cross-linking doses. The degradation in fracture properties indicates that highly cross-linked polyethylene should not be used in applications where high stresses are expected. Lower degrees of cross-linking may be more appropriate when designing for both wear and fatigue in total joint replacements.
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Pruitt, L.A. (2005). Conventional and Cross-Linked Polyethylene Properties. In: Bellemans, J., Ries, M.D., Victor, J.M. (eds) Total Knee Arthroplasty. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-27658-0_56
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DOI: https://doi.org/10.1007/3-540-27658-0_56
Publisher Name: Springer, Berlin, Heidelberg
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