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Table 3 Radiographic coronal measurements

From: Onset and remodeling of coronal imbalance after selective posterior thoracic fusion for Lenke 1C and 2C adolescent idiopathic scoliosis (a pilot study)

Coronal measurements

Preop.

Postop.

Final follow-up

PT curve (°)

29.4 ± 9.4

16.1 ± 7.6a

16.9 ± 7.8a

 Flexibility (%)

24.7 ± 19.3

  

 Correction rate (%)

  

42.8 ± 18.8

MT curve (°)

57.3 ± 12.1

17.8 ± 7.7a

22.8 ± 8.9a

 Flexibility (%)

29.6 ± 16.3

  

 Correction rate (%)

  

60.4 ± 12.2

TLL curve (°)

42.3 ± 5.7

19.3 ± 7.4a

22.5 ± 7.8a

 Flexibility (%)

75.0 ± 14.6

  

 Correction rate (%)

  

46.6 ± 17.6

AVT-MT (mm)

45.2 ± 15.5

2.0 ± 11.7a

10.0 ± 13.0a

AVT-TLL (mm)

22.0 ± 5.7

25.0 ± 7.0

16.8 ± 8.4a

LIV tilt (°)

24.4 ± 12.3

8.1 ± 6.7a

10.2 ± 5.8a

Coronal balance (mm)

−3.8 ± 10.8

−21.2 ± 13.6a

−12.0 ± 11.1a

Trunk shift (mm)

41.3 ± 20.5

−19.3 ± 16.7a

−2.5 ± 17.4a

  1. Values indicate mean ± standard deviation
  2. PT proximal thoracic, MT main thoracic, TLL thoracolumbar/lumbar, AVT apical vertebral translation, LIV lowest instrumented vertebra
  3. aStatistical significance