- Metal ion levels: how can they help us?
Metal ion levels: how can they help us?
The Journal of arthroplasty (2014-03-25)
William L Griffin
PMID24655610
ABSTRACT
Ion levels have been shown to reliably predict abnormal function of the bearing surface with increased wear, but ion levels should not be used alone as a trigger for when to proceed with revision surgery with metal-metal articulations. Risk stratification strategies help determine which patients should be monitored more closely with serial ion levels, cross-sectional imaging with a MARS MRI, or proceed on to revision. Based on the current data available, an ion level greater than 4.5 ppb (Cr or Co) may serve as a threshold for when abnormal wear is occurring, and is suggested as a trigger for a MARS MRI scan.
MATERIALS
Product Number
Brand
Product Description
Chromium, foil, not light tested, 25x25mm, thickness 0.025mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 100x100mm, thickness 0.025mm, permanent polyester support, 99.99+%
Cobalt, wire reel, 0.2m, diameter 0.05mm, hard, 99.9%
Cobalt, wire reel, 2m, diameter 0.05mm, hard, 99.9%
Chromium, foil, not light tested, 50x50mm, thickness 0.03mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 50x50mm, thickness 0.025mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 25x25mm, thickness 0.03mm, permanent polyester support, 99.99+%
Chromium, microfoil, disks, 25mm, thinness 0.25μm, specific density 178.7μg/cm2, permanent mylar 3.5μm support, 99.99+%
Cobalt, wire reel, 0.5m, diameter 0.05mm, hard, 99.9%
Chromium, foil, not light tested, 50x50mm, thickness 0.015mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 25x25mm, thickness 0.0125mm, permanent polyester support, 99.99+%
Cobalt, wire reel, 0.2m, diameter 0.1mm, hard, 99.99+%
Chromium, foil, not light tested, 50x50mm, thickness 0.04mm, permanent polyester support, 99.99+%
Cobalt, wire reel, 0.2m, diameter 0.5mm, hard, 99.99+%
Chromium, microfoil, disks, 25mm, thinness 0.5μm, specific density 355μg/cm2, permanent mylar 3.5μm support, 99.99+%
Cobalt, wire reel, 1m, diameter 0.125mm, hard, 99.99+%
Cobalt, wire reel, 0.2m, diameter 0.25mm, hard, 99.99+%
Cobalt, wire reel, 0.2m, diameter 1.0mm, hard, 99.99+%
Chromium, foil, not light tested, 100x100mm, thickness 0.04mm, permanent polyester support, 99.99+%
Cobalt, foil, 25x25mm, thickness 0.25mm, as rolled, 99.99+%
Chromium, microfoil, disks, 25mm, thinness 1.0μm, specific density 719μg/cm2, permanent mylar 3.5μm support, 99.99+%
Cobalt, wire reel, 1m, diameter 0.1mm, hard, 99.99+%
Cobalt, foil, 50x50mm, thickness 0.7mm, annealed, 99.9%
Chromium, foil, not light tested, 100x100mm, thickness 0.01mm, permanent polyester support, 99.99+%
Cobalt, foil, 10mm disks, thickness 0.005mm, 99.9%
Cobalt, foil, 100x100mm, thickness 1.0mm, as rolled, 99.9%
Cobalt, wire reel, 0.5m, diameter 0.5mm, hard, 99.99+%
Chromium, microfoil, disks, 10mm, thinness 1.0μm, specific density 719μg/cm2, permanent mylar 3.5μm support, 99.99+%
Chromium, microfoil, disks, 10mm, thinness 0.025μm, specific density 18.21μg/cm2, permanent mylar 3.5μm support, 99.99+%
Cobalt, foil, 15mm disks, thickness 0.005mm, 99.9%