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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

ANOTACE

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.

MATERIÁLY

Číslo produktu

Značka

Popis produktu

Sigma-Aldrich

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

Sigma-Aldrich

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

Sigma-Aldrich

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

Sigma-Aldrich

Chromium, chips, 99.995% trace metals basis

Sigma-Aldrich

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

Sigma-Aldrich

Chromium, powder, 99.5%, −100 mesh

Sigma-Aldrich

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

Sigma-Aldrich

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

Sigma-Aldrich

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

Sigma-Aldrich

Cobalt, foil, thickness 0.1 mm, ≥99.99%

Sigma-Aldrich

Chromium, chips, thickness ~2 mm, 99.5%

Sigma-Aldrich

Cobalt, granular, 99.99% trace metals basis

Sigma-Aldrich

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

Sigma-Aldrich

Cobalt, pieces, 99.5% trace metals basis

Cobalt, foil, 6mm disks, thickness 0.05mm, as rolled, 99.9%

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

Cobalt, foil, 8mm disks, thickness 0.125mm, as rolled, 99.99+%

Cobalt, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 99.9%

Cobalt, foil, not light tested, 25x25mm, thickness 0.01mm, 99.9%

Cobalt, foil, not light tested, 100x100mm, thickness 0.009mm, 99.9%

Cobalt, wire reel, 0.05m, diameter 1.0mm, hard, 99.99+%

Cobalt, foil, light tested, 25x25mm, thickness 0.025mm, 99.9%

Cobalt, foil, not light tested, 25x25mm, thickness 0.0025mm, temporary acrylic support, 99.9%

Cobalt, foil, light tested, 50x50mm, thickness 0.015mm, 99.9%

Cobalt, foil, 8mm disks, thickness 0.25mm, as rolled, 99.9%

Cobalt, foil, 8mm disks, thickness 0.0125mm, 99.9%

Cobalt, foil, not light tested, 100x100mm, thickness 0.02mm, 99.9%

Cobalt, foil, not light tested, 100x100mm, thickness 0.0125mm, 99.9%

Cobalt, wire reel, 0.05m, diameter 2.0mm, hard, 99.99+%

Cobalt, foil, not light tested, 25x25mm, thickness 0.002mm, temporary acrylic support, 99.9%