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Patient characteristics.
| Variable | Mean (range) |
|---|---|
| Age (years) | 7.9 (3.7 to 13.6) |
| Sex | 25 females 18 males |
| Aetiology | 20 idiopathic 13 neuromuscular 9 syndromic 2 congenital |
| Primary/revision | 41 primary 3 revisions (2 TGR, 1 Shilla rods) |
| Rod configuration | 38 dual rods 6 single rod |
| Number of distractions per child | 11.3 (4 to 18) |
| Length of follow-up (years) | 4.1 (2 to 6) |
TGR, traditional growing rods.
