Table 3. Chromium and nickel concentration in blood and urine preoperatively and at the time of bar removal.
Mean level prior to MIRPE (μg/l) | Mean level at bar removal (μg/l) | P value | Highest level at bar removal (μg/l) | Reference value (μg/l) | |
---|---|---|---|---|---|
Chromium in plasma | 0.24 | 0.37 | 0.142 | 1.2 | 0.4 |
Chromium in urine | 0.29 | 3.19 | <0.001 | 18.6 | 0.6 |
Nickel in blood | 0.28 | 1.45 | <0.001 | 10.65 | 0.5 |
Nickel in urine | 1.82 | 2.77 | 0.379 | 8.9 | 3 |