Table 4 Comparisons between the PETS and TBP groups

Age at insertion (years)

11.2 ± 1.0

11.3 ± 2.2

0.842

BMI at insertion (kg/m²)

23.1 ± 4.4

24.1 ± 4.5

0.353

Femur vs. Tibia

23 vs. 13

27 vs. 10

0.404

Correction period (months)

6.3 ± 2.0

9.0 ± 2.1

< 0.001

Correction angle (°)

6.4 ± 3.0

6.7 ± 2.0

0.595

Correction rate (° per month)

1.0 ± 0.4

0.8 ± 0.3

0.007

Age at removal (years)

11.7 ± 1.0

12.0 ± 2.3

0.881

BMI at removal (kg/m²)

24.0 ± 4.8

24.3 ± 4.6

0.774