Variables

Negative AV

Positive AV

P value


Failure rate (%)

36.8

81.2

0.016*^{,b}

Surgical rate (%)

21.1

75.0

0.002*^{,b}

AV at PHV (°/y)

−9.6 ± 7.6

8.2 ± 4.0

0.000*^{,a}

Initial curve magnitude (°)

26.3 ± 4.6

26.7 ± 5.7

0.832

Final curve magnitude (°)

29.4 ± 9.1

39.6 ± 14.2

0.015*^{,a}

PHV (cm/y)

8.8 ± 1.5

9.4 ± 1.8

0.327

Timing of PHV (yrs)

11.7 ± 1.1

11.5 ± 0.8

0.732

Age at diagnosis (yrs)

11.0 ± 1.3

10.0 ± 1.0

0.014*^{,a}

Initial SSMS

2.7 ± 0.6

2.2 ± 0.5

0.006*^{,a}

Initial DRU (R)

7.0 ± 0.8

6.4 ± 1.0

0.053

Initial DRU (U)

5.1 ± 0.8

4.3 ± 0.9

0.016*^{,a}

SSMS at PHV

3.4 ± 0.5

3.5 ± 0.6

0.495

DRU (R) at PHV

8.0 ± 0.7

8.0 ± 0.7

0.999

DRU (U) at PHV

5.9 ± 0.5

5.8 ± 0.4

0.244

Percentage of major thoracic curve (%)

47.3

68.8

0.306

Initial height (cm)

145.2 ± 7.2

138.3 ± 8.2

0.013*^{,a}

Final height (cm)

161.3 ± 5.4

159.2 ± 5.6

0.257

 AV Angle velocity, PHV Peak height velocity, SSMS Simplified skeletal maturity score, DRU Distal radius and ulna classification
 Analyses were performed through
 ^{a}independent sample T test
 ^{b}crosstab analysis
 *p < 0.05