Table 1 The demographic and radiographic data at pre-operation in 3 groups

Gender (M/F)

5/4

13/9

51/44

0.899

Age (y) ^$

17(13, 29.5)

14(12.8, 17.3)

14(12, 15)

0.135^#

Apex (T/L)

7/2

18/4

70/25

0.588

Fusion levels (vertebra)

13.0±1.8

12.0±2.0

11.6±2.2

0.135

Operation time (min)

367.8±92.0

316.8±107.1

283.7±80.7

0.011

Estimated Blood loss (ml)

1878.9±483.6

1138.0±400.5

970.3±349.2

0.003

No. of satellite rod technique

6(66.7%)

10(45.5%)

24(25.3%)

0.013

Follow-up (m)

39.1±10.4

37.6±12.2

43.6±16.1

0.204

Cobb angle of main curve (°)

84.3±24.6

99.1±24.3

60.0±16.8

<0.001

Coronal imbalance (mm)

37.2±20.0

25.9±17.7

15.9±13.8

<0.001

AVT (mm)

54.8±25.6

56.8±24.8

42.4±16.0

0.002

PT (°)

12.2±10.3

3.6±11.3

9.6±24.2

0.445

PI (°)

36.1±7.7

36.4±14.2

43.8±25.0

0.284

SS (°)

23.8±9.6

32.9±12.4

34.2±9.6

0.016

LL (°)

59.4±31.5

59.5±22.0

50.3±18.1

0.090

TK (°)

61.7±45.5

51.3±29.5

26.4±17.5

<0.001

SVA (mm)

32.4±16.7

39.8±19.2

30.3±20.2

0.133

SK (°)

80.0±24.8

88.5±27.8

36.2±17.6

<0.001

DAR (°/level)

40.8±8.8

44.6±11.7

23.2±7.1

<0.001