Table 1 Summary of patients demographics

Sex (male/ female)

47 / 47

Age at initial surgery (years)

11.0 ± 2.5

Body mass index (kg/m²)

20.5 ± 4.9

Type of deformity (valgus / varus)

66 / 28

Laterality ( right / left)

46 / 48

Site (distal femur / proximal tibia)

47 / 47

Duration of correction (year)

1.3 ± 0.6

Amount of correction (°)

9.1 ± 5.1

Rate of correction (°/ year)

8.1 ± 4.7

Follow-up after implant removal (years)

2.2 ± 1.2

Rebound angle (°)

4.2 ± 3.5

Rebound / non-rebound groups

41 / 53