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The Bone & Joint Journal
Vol. 103-B, Issue 7 | Pages 1231 - 1237
1 Jul 2021
Manninen E Lainiala O Karsikas M Reito A Jämsä P Eskelinen A

Aims

To find out if there is an inverse association between estimated glomerular filtration rate (eGFR) and whole blood cobalt (Co) and chromium (Cr) levels in patients with metal-on-metal (MoM) hip arthroplasties and renal insufficiency, suggesting that renal insufficiency could cause accumulation of Co and Cr in blood.

Methods

Out of 2,520 patients with 3,013 MoM hip arthroplasties, we identified 1,244 patients with whole blood Co, Cr, and creatinine measured within no more than a one-year interval. We analyzed the correlation of blood metal ion levels and eGFR to identify a potential trend of accumulating Co or Cr with decreasing eGFR.


The Bone & Joint Journal
Vol. 99-B, Issue 9 | Pages 1147 - 1152
1 Sep 2017
Lainiala O Reito A Jämsä P Eskelinen A

Aims

To determine whether there is any association between glomerular filtration rate (GFR) and blood cobalt (Co) and chromium (Cr) levels in patients with metal-on-metal (MoM) hip arthroplasty.

Patients and Methods

We identified 179 patients with a unilateral 36 mm diameter head as part of a stemmed Summit-Pinnacle MoM hip arthroplasty. GFR was calculated using the Modification of Diet in Renal Disease formula.