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
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

Sigma-Aldrich
铬, chips, 99.995% trace metals basis
Sigma-Aldrich
钴, powder, <150 μm, ≥99.9% trace metals basis
Sigma-Aldrich
铬, powder, ≥99% trace metals basis, <45 μm
Sigma-Aldrich
钴, powder, 2 μm particle size, 99.8% trace metals basis
Sigma-Aldrich
钴, granular, 99.99% trace metals basis
Sigma-Aldrich
铬, powder, 99.5%, −100 mesh
Sigma-Aldrich
钴, Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%
Sigma-Aldrich
钴, foil, thickness 0.1 mm, 99.95% trace metals basis
Sigma-Aldrich
铬, chips, thickness ~2 mm, 99.5%
Sigma-Aldrich
钴, pieces, 99.5% trace metals basis
Sigma-Aldrich
钴, wire, diam. 1.0 mm, 99.995% trace metals basis
Sigma-Aldrich
钴, foil, thickness 1.0 mm, 99.95% trace metals basis
Sigma-Aldrich
钴, foil, thickness 0.25 mm, ≥99.99% trace metals basis
铬, rod, 10mm, diameter 5.0mm, 99.7+%
钴, wire reel, 0.5m, diameter 0.5mm, hard, 99.99+%
钴, foil, 6mm disks, thickness 0.003mm, 99.9%
钴, wire reel, 0.1m, diameter 0.5mm, hard, 99.99+%
钴, wire reel, 0.2m, diameter 0.125mm, hard, 99.99+%
钴, foil, 25mm disks, thickness 0.05mm, annealed, 99.9%
钴, foil, 25mm disks, thickness 0.05mm, as rolled, 99.9%
钴, foil, 25mm disks, thickness 0.125mm, annealed, 99.9%
钴, foil, 25mm disks, thickness 0.25mm, as rolled, 99.9%
钴, foil, 25mm disks, thickness 0.25mm, as rolled, 99.99+%
钴, foil, 4mm disks, thickness 0.003mm, 99.9%
钴, foil, 4mm disks, thickness 0.004mm, 99.9%
钴, foil, 4mm disks, thickness 0.005mm, 99.9%
钴, foil, 4mm disks, thickness 0.006mm, 99.9%
钴, foil, 4mm disks, thickness 0.007mm, 99.9%
钴, foil, 4mm disks, thickness 0.008mm, 99.9%
钴, foil, 4mm disks, thickness 0.009mm, 99.9%