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Keywords: arthroplasty
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eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7627-0
... Varying degrees of corrosion have been seen at the head-neck junction of modular femoral arthroplasty components. Historically, smooth finishes were applied to both the male and female tapers and most work describing corrosion (e.g., fretting, intergranular attack, etc.) investigated such smooth...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7627-0
... /year) and are of similar magnitude to rates identified for material loss in metal-on-metal hips. The average rate of material loss in vivo is thus of clinical relevance in the context of the observed adverse outcomes. taper corrosion metrology arthroplasty MODULARITY AND TAPERS IN TOTAL...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7627-0
... would be improved if the score accounted for the formation of grooves that are a common feature of many explanted tapers. arthroplasty corrosion retrieval taper MODULARITY AND TAPERS IN TOTAL JOINT REPLACEMENT DEVICES 351 STP 1591, 2015 / available online at www.astm.org / doi: 10.1520...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2006
ISBN-10: 0-8031-3497-5
ISBN: 978-0-8031-3497-3
... More demanding performance expectations for total joint arthroplasty are driving the development of alternative bearing materials. Oxidized zirconium was developed as an alternative to cobalt-chromium alloy for knee and hip femoral components in order to reduce wear of the polyethylene...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3459-2
ISBN: 978-0-8031-3459-1
...!), polymer and serum. Arthroplasty Biomechanics Bone Resorption Corrosion Crevice Corrosion Fretting Foreign-Body Reaction Hip Prosthesis Macrophages Metals Microscopy Electron Middle Age Particle Size Polymethylmethacrylate Steel Stainless Dieter Wirz 1, Bruno Zurfluh2, Beat...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2010-9
ISBN: 978-0-8031-2010-5
... dependent manner. These results suggest bone resorption and implant loosening may result from mediators released from stimulated macrophages after exposure to titanium aluminium vanadium alloy wear particles. arthroplasty wear particles titanium alloy macrophage prostaglandin E 2 cytokines...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2010-9
ISBN: 978-0-8031-2010-5
... are useful in defining the mechanisms whereby wear particles may induce a cellular response which causes bone resorption and loosening. arthroplasty implant wear wear particles osteolysis Donald W. Howie 1 and Margaret A. McGee 1 WEAR AND OSTEOLYSIS IN RELATION TO PROSTHESES DESIGN AND MATERIALS...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1852-X
ISBN: 978-0-8031-1852-2
... polymer (CFRP) composite devices. In this study, unilateral total hip arthroplasty was performed on 34 canines using CFRP or geometrically identical titanium alloy femoral endoprostheses for periods of 6, 12, or 24 months. The CFRP composite stems had approximately one-half the bending stiffness...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1441-9
ISBN: 978-0-8031-1441-8
... Aseptic loosening is the most common cause of failure of joint arthroplasties. Although the exact pathogenesis of the loosening process is not completely understood, particles of polymethyl methacrylate and polyethylene appear to play a crucial role. This paper summarizes past and current...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1441-9
ISBN: 978-0-8031-1441-8
... debris is generated. particulates implants arthroplasty wear debris histiocytes titanium polyethylene Pat Campbell, l S a m Nasser, 2 Nir Kossovsky, 3 and H. C. A m s t u t z 4 Histopathological Effects of UltrahighMolecular-Weight Polyethylene and Metal Wear Debris in Porous and Cemented...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1441-9
ISBN: 978-0-8031-1441-8
... Wear debris is produced by both the gross and microscopic motion between all implant, bone, and cement interfaces in prosthetic arthroplasty. It has been hypothesized that this debris elicits an inflammatory biological reaction, resulting in bone loss, implant loosening, and subsequent...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1441-9
ISBN: 978-0-8031-1441-8
... Implantation of an orthopedic device into or onto bone induces the formation of an interface membrane separating the one from the other. The histological reaction patterns described herein are those occurring in the interface membranes of a cemented arthroplasty, cementless isoelastic...