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Table 3 Whole blood metal ion reference table

From: Metal-on-metal hip resurfacing in patients younger than 50 years: a retrospective analysis

 

Normala

Optimalb

Acceptablec

Problematicc

Potentially toxicb

Unilateral

 Co (μg/L)

<1.5

<4.0

4–10

10–20

>20

 Cr (μg/L)

<1.5

<4.6

4.6–10

10–20

>20

Bilateral

 Co (μg/L)

<1.5

<5.0

5–10

10–20

>20

 Cr (μg/L)

<1.5

<7.4

7.4–10

10–20

>20

  1. aLaboratory normal for patients without metal bearings
  2. bAccording to DeSmet/Van der Straeten [34, 35]
  3. cAccording to our previous analysis