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Metal ions and moderate pseudotumor development reduced with large- vs. small-head MoM THA
September 2018
Metal ions and moderate pseudotumor development reduced with large- vs. small-head MoM THA
Study Type:Randomized Trial
OE Level Evidence:2
Journal Level of Evidence:N/A
A comparison of the effect of large and small metal-on-metal bearings in total hip arthroplasty on metal ion levels and the incidence of pseudotumour
Bone Joint J. 2018 Aug;100-B(8):1018-1024Did you know you're eligible to earn 0.5 CME credits for reading this report? Click Here
Synopsis
185 patients scheduled for metal-on-metal (MoM) total hip arthroplasty (THA) were randomized to either large-head or small-head articulation. Main outcomes of concern in this study included whole blood cobalt and chromium ion concentrations and the incidence of pseudotumor development on MRI over a 5-year follow-up. Cobalt levels were significantly lower in the large-head group compared to the sma...
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