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Merck

What do we know about taper corrosion in total hip arthroplasty?

The Journal of arthroplasty (2014-03-25)
J J Jacobs, H J Cooper, R M Urban, R L Wixson, C J Della Valle
要旨

Mechanically assisted crevice corrosion (MACC) at metal/metal modular junctions in which at least one of the components is fabricated from cobalt-chromium alloy, has reemerged as a potential clinically significant complication in total hip arthroplasty. The clinical manifestation of MACC may include the development of an adverse local tissue reaction (ALTR), similar to what has been described in association with metal-on-metal bearing total hip and resurfacing arthroplasty. The clinical presentation of MACC-associated ALTRs may include pain and possibly late recurrent dislocations. Abnormal metal artifact reduction sequence magnetic resonance images and elevated serum metal levels (cobalt elevations out of proportion to chromium elevations) can be helpful in the diagnosis of these MACC-associated ALTRs.

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製品番号
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製品内容

Sigma-Aldrich
クロム, powder, ≥99% trace metals basis, <45 μm
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コバルト, powder, 2 μm particle size, 99.8% trace metals basis
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コバルト, powder, <150 μm, ≥99.9% trace metals basis
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クロム, powder, 99.5%, −100 mesh
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コバルト, granular, 99.99% trace metals basis
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クロム, chips, 99.995% trace metals basis
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コバルト, Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%
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コバルト, pieces, 99.5% trace metals basis
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コバルト, foil, thickness 0.1 mm, 99.95% trace metals basis
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コバルト, rod, diam. 5.0 mm, 99.95% trace metals basis
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コバルト, wire, diam. 1.0 mm, 99.995% trace metals basis
コバルト, foil, 100x100mm, thickness 2.0mm, as rolled, 99.9%
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クロム, chips, thickness ~2 mm, 99.5%
コバルト, foil, 100x100mm, thickness 0.125mm, annealed, 99.9%
クロム, foil, light tested, 25x25mm, thickness 0.025mm, permanent polyester support, 99.99+%
コバルト, foil, 100x100mm, thickness 1.0mm, as rolled, 99.9%
Sigma-Aldrich
コバルト, foil, thickness 1.0 mm, 99.95% trace metals basis
クロム, rod, 25mm, diameter 2.0mm, 99.7+%
コバルト, foil, light tested, 25x25mm, thickness 0.01mm, 99.9%
コバルト, wire reel, 0.5m, diameter 0.05mm, hard, 99.9%
クロム, rod, 10mm, diameter 2.0mm, 99.7+%
コバルト, foil, 8mm disks, thickness 0.01mm, 99.9%
コバルト, foil, 8mm disks, thickness 0.007mm, 99.9%
クロム, microfoil, disks, 10mm, thinness 1.0μm, specific density 719μg/cm2, permanent mylar 3.5μm support, 99.99+%
クロム, microfoil, disks, 25mm, thinness 1.0μm, specific density 719μg/cm2, permanent mylar 3.5μm support, 99.99+%
コバルト, foil, 100x100mm, thickness 0.25mm, as rolled, 99.9%
クロム, bar, 100mm x 2mm x 2mm, 99.7+%
コバルト, foil, 4mm disks, thickness 0.015mm, 99.9%
コバルト, foil, 8mm disks, thickness 0.009mm, 99.9%
コバルト, foil, light tested, 25x25mm, thickness 0.0125mm, 99.9%