Metal ion levels: how can they help us?
review · Level V
Where this comes from
- Record sourced from PubMed, PMID 24655610.
- Also identified by DOI 10.1016/j.arth.2014.02.005.
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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.
Medical subject headings
- Arthroplasty, Replacement, Hip
- Hip Prosthesis
- Ions
- Metals, Heavy
Anatomy
- hip