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Ultra-high molecular weight polyethylene (UHMWPE) for hip and knee arthroplasty: The present and the future
Alessandro Bistolfi1, Fortunato Giustra1, Francesco Bosco1
1Department of Orthopaedics, Traumatology and Rehabilitation, C.T.O. Hospital. AOU Città della Salute e della Scienza, Via Zuretti 29, 10126, Turin, Italy.
Purpose:
to review advances and clinical performance of polyethylene in total joint arthroplasty, summing up historical problems and focusing on the latest innovations.
Methods:
search for medical grade Ultra-High-Molecular-Weight-Polyethylene (UHMWPE); Data Sources: PubMed, Scopus, Cochrane Library.
Results:
the increasing number of joint arthroplasties and high-activity patients led to progressive developments of bearing surfaces to improve performance and durability. Different strategies such as crosslinking UHMWPE (HXLPE) and the addition of vitamin-E (HXLPE) have been tested to improve wear and oxidation resistance.
Conclusion:
Recent innovations about UHMWPE showed improvements either for hip and knee, with the potential of long-term survivorship.
