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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

ABSTRACT

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.

MATERIALS

Product Number

Brand

Product Description

Cobalt, wire reel, 0.2m, diameter 0.5mm, hard, 99.99+%

Cobalt, foil, 10mm disks, thickness 0.009mm, 99.9%

Cobalt, foil, 15mm disks, thickness 0.015mm, 99.9%

Sigma-Aldrich

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

Sigma-Aldrich

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

Sigma-Aldrich

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

Sigma-Aldrich

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

Cobalt, foil, 8mm disks, thickness 0.025mm, 99.9%

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

Cobalt, foil, 8mm disks, thickness 0.05mm, as rolled, 99.99+%

Cobalt, foil, 6mm disks, thickness 0.006mm, 99.9%

Cobalt, foil, not light tested, 25x25mm, thickness 0.005mm, 99.9%

Cobalt, foil, not light tested, 25x25mm, thickness 0.008mm, 99.9%

Cobalt, foil, not light tested, 50x50mm, thickness 0.0125mm, 99.9%

Cobalt, foil, not light tested, 50x50mm, thickness 0.025mm, 99.9%

Cobalt, foil, 4mm disks, thickness 0.125mm, annealed, 99.9%

Cobalt, foil, 4mm disks, thickness 0.025mm, 99.9%

Cobalt, microfoil, disks, 10mm, thinness 0.25μm, specific density 222μg/cm², permanent mylar 3.5μm support, 99.9%

Cobalt, foil, 6mm disks, thickness 0.007mm, 99.9%

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

Cobalt, foil, 8mm disks, thickness 0.05mm, as rolled, 99.9%

Cobalt, foil, light tested, 25x25mm, thickness 0.015mm, 99.9%

Cobalt, wire reel, 0.025m, diameter 2.0mm, hard, 99.99+%

Cobalt, foil, light tested, 100x100mm, thickness 0.05mm, as rolled, 99.99+%

Cobalt, foil, 6mm disks, thickness 0.015mm, 99.9%

Cobalt, foil, not light tested, 50x50mm, thickness 0.003mm, 99.9%

Cobalt, foil, not light tested, 150x150mm, thickness 0.0125mm, 99.9%

Cobalt, wire reel, 0.1m, diameter 1.0mm, hard, 99.99+%

Cobalt, foil, not light tested, 100x100mm, thickness 0.007mm, 99.9%

Cobalt, foil, light tested, 100x100mm, thickness 0.05mm, as rolled, 99.9%