Table 1 Baseline demographic, clinical and radiographic data

Baseline variable

Group A (nonoperative)

Group B (operative)

p-value

 N° of children (feet)

34 (47)

21 (34)

.07

 Male/female ratio

23/11

12/9

.35

 Age (years) [mean ± SD (range)]

11.6 ± 2.1 (9–17)

12.2 ± 1.2 (10–15)

.07

 AOFAS-AHS pain [mean ± SD (range)]

28 ± 4 (20–40)

28 ± 5 (20–30)

.71

 AOFAS-AHS function [mean ± SD (range)]

42 ± 3 (35–47)

42 ± 4 (27–47)

.76

 AOFAS-AHS alignment [mean ± SD (range)]

1 ± 2 (0–10)

1 ± 2 (0–5)

.29

 AOFAS-AHS tot [mean ± SD (range)]

70 ± 7 (55–87)

70 ± 7 (47–82)

.47

Radiographic data

Group A (nonoperative)

Group B (operative)

p-value

 Calcaneal Pitch (°) [mean ± SD (range)]

13.7 ± 3.9 (9–20)

14.7 ± 3.1(11–21)

.48

 Meary’s angle (°) [mean ± SD (range)]

12.6 ± 4.3 (8–20)

13.3 ± 4.7 (9–21)

.82

 Heel valgus (°) [mean ± SD (range)]

23.7 ± 8.8 (6.6–46.8)

26.4 ± 7.7 (12.8–38.5)

.37

 JSN (mm) [mean ± SD (range)]

2.8 ± 1.0 (0.6–4.8)

2.7 ± 0.9 (1.7–4.8)

.28

 Rozansky classification

I: 13

I: 18

.19

II: 9

II: 4

III: 12

III: 7

IV: 8

IV: 4

V: 5

V: 1