Table 1.
Individual characteristics of patients with radiological signs of corrosion of their implants
| Patient | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sex | F | M | F | F | F | F | F | F | F | M | F |
| Diagnosis | IS | SK | IS | AS | SK | IS | IS | IS | IS | CP | CS |
| Age at surgery (years) | 12 | 15 | 13 | 37 | 34 | 13 | 14 | 12 | 14 | 16 | 14 |
| Age at metal level determination (years) | 25 | 28 | 26 | 51 | 49 | 26 | 29 | 27 | 29 | 31 | 29 |
| Year of surgery | 1992 | 1992 | 1992 | 1991 | 1990 | 1992 | 1990 | 1991 | 1990 | 1991 | 1991 |
| Fusion level | T4L3 | T1L2 | T3L2 | T2L3 | T2L1 | T2L2 | T3L4 | T2L2 | T3L3 | T2L3 | T7L3 |
| Months from surgery to metal levels determination | 159 | 162 | 159 | 167 | 180 | 161 | 180 | 176 | 179 | 172 | 175 |
| Serum Ni (μg/l) | 3.8 | 1.5 | 3 | 5.6 | 2.8 | 3.6 | 5.3 | 3.5 | 3.9 | 9 | 5.2 |
| Urine Ni (μg/l) | 1.7 | 16 | 129 | 19 | 10 | 14.5 | 96.5 | 26.9 | 20.4 | 300 | 74.9 |
| Serum Cr (μg/l) | 4.8 | 33 | 26.4 | 11.1 | 22 | 10.5 | 23 | 9 | 2.2 | 1.6 | 7.2 |
| Urine Cr (μg/g) creatinine | 15.7 | 73.2 | 90.9 | 12 | 47.2 | 27.9 | 96.5 | 22.5 | 6 | 10 | 37.5 |
M Male; F female; IS idiopathic scoliosis; SK Sheuermann kyphosis; AS adult scoliosis; CP scoliosis in cerebral palsy; CS congenital scoliosis