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

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

ZUSAMMENFASSUNG

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.

MATERIALIEN

Produktnummer

Marke

Produktbeschreibung

Sigma-Aldrich

Chrom, powder, ≥99% trace metals basis, <45 μm

Sigma-Aldrich

Kobalt, powder, 2 μm particle size, 99.8% trace metals basis

Sigma-Aldrich

Kobalt, powder, <150 μm, ≥99.9% trace metals basis

Sigma-Aldrich

Chrom, powder, 99.5%, −100 mesh

Sigma-Aldrich

Kobalt, granular, 99.99% trace metals basis

Sigma-Aldrich

Chrom, chips, 99.995% trace metals basis

Sigma-Aldrich

Kobalt, Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%

Sigma-Aldrich

Kobalt, pieces, 99.5% trace metals basis

Sigma-Aldrich

Kobalt, foil, thickness 0.1 mm, 99.95% trace metals basis

Sigma-Aldrich

Kobalt, rod, diam. 5.0 mm, 99.95% trace metals basis

Sigma-Aldrich

Kobalt, wire, diam. 1.0 mm, 99.995% trace metals basis

Kobalt, foil, 100x100mm, thickness 2.0mm, as rolled, 99.9%

Sigma-Aldrich

Chrom, chips, thickness ~2 mm, 99.5%

Chrom, foil, light tested, 25x25mm, thickness 0.025mm, permanent polyester support, 99.99+%

Kobalt, foil, 100x100mm, thickness 1.0mm, as rolled, 99.9%

Sigma-Aldrich

Kobalt, foil, thickness 1.0 mm, 99.95% trace metals basis

Chrom, rod, 25mm, diameter 2.0mm, 99.7+%

Kobalt, foil, light tested, 25x25mm, thickness 0.01mm, 99.9%

Sigma-Aldrich

Kobalt, foil, thickness 0.1 mm, ≥99.99%

Kobalt, wire reel, 0.5m, diameter 0.05mm, hard, 99.9%

Chrom, rod, 10mm, diameter 2.0mm, 99.7+%

Kobalt, foil, 8mm disks, thickness 0.01mm, 99.9%

Kobalt, foil, 8mm disks, thickness 0.007mm, 99.9%

Chrom, microfoil, disks, 10mm, thinness 1.0μm, specific density 719μg/cm², permanent mylar 3.5μm support, 99.99+%

Chrom, microfoil, disks, 25mm, thinness 1.0μm, specific density 719μg/cm², permanent mylar 3.5μm support, 99.99+%

Kobalt, foil, 100x100mm, thickness 0.25mm, as rolled, 99.9%

Chrom, bar, 100mm x 2mm x 2mm, 99.7+%

Kobalt, foil, 4mm disks, thickness 0.015mm, 99.9%

Kobalt, foil, 8mm disks, thickness 0.009mm, 99.9%

Kobalt, foil, light tested, 25x25mm, thickness 0.0125mm, 99.9%