Polyethylene wear in metal-backed tibial components in unicompartmental knee prostheses.

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Abstract

[Indexed for MEDLINE] Conflict of interest statement: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Chloe Scott reports consulting fees from Smith and Nephew. In addition, she reports payment for delivering educational courses for Stryker and DePuy, none of which were related to this study. She is a part of an advisory board for Pfizer. The other authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. 5. J Knee Surg. 2015 Apr;28(2):139-44. doi: 10.1055/s-0034-1398375. Epub 2014 Dec 24. Wear and loosening in total knee arthroplasty: a quick review. Fraser JF(1), Werner S(2), Jacofsky DJ(3). Author information: (1)Department of Orthopedics, Banner Good Samaritan Hospital, Phoenix, Arizona. (2)Division of Adult Reconstruction, The CORE Institute, Center for Orthopedic Research and Education, Phoenix, Arizona. (3)The CORE Institute, Center for Orthopedic Research and Education, Phoenix, Arizona. Wear and osteolysis are common problems that often require revision surgery following total knee arthroplasty (TKA). Wear rates can be reduced through proper implant positioning and the use of modern, highly cross-linked polyethylene liners. More research is needed to identify medications that could prevent or treat the bone loss associated with osteolysis. Bone defects resulting from osteolysis can be managed with a variety of bone-preserving strategies and often require the use of structural augmentation, either in the form of bulk allografts or metal augments. Recently, porous metal augments such as tantalum cones have gained popularity among surgeons performing revision TKA for osteolytic bone defects with promising early clinical results. A megaprosthesis with a rotating hinge device may be used in salvage cases for severe bone deficiencies. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA. DOI: 10.1055/s-0034-1398375