Table 1.
Demographic, clinical and surgical implant data
| Variable | Mean ± SD or no. of patients | Range or percent |
|---|---|---|
| Age at surgery (years) | 15.2 ± 1.79 | 12.1–21.0 |
| Gender | ||
| Male | 29 | 32.2 % |
| Female | 61 | 67.8 % |
| Body mass index (BMI) | 20.6 ± 3.9 | 14.6–38.7 |
| No. of fusion levels | 9.5 ± 2.2 | 3–16 |
| Material | ||
| Stainless steel | 74 | 82.2 % |
| Titanium | 16 | 17.8 % |
| Implants | ||
| Pedicle screws | 80 | 92.0 % |
| Hooks | 76 | 87.4 % |
| Wires | 47 | 54.0 % |
| Crosslinks | 60 | 69.0 % |
| Total implants | 19.0 ± 3.6 | 11–32 |
| Implant density | 2.0 ± 0.3 | 1.1–2.9 |
| Air travel (no. of screenings) | 4.8 ± 3.0 | 2–20 |
| Airport detector triggers | 5 | 5.6 % |