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Table 4 Trend of wedging classification and the corresponding percentage change

From: Contribution of coronal vertebral and IVD wedging to Cobb angle changes in adolescent idiopathic scoliosis during growth

Group

Wedging

Maximum sum of wedging at the first visit

Maximum sum of wedging at the latest visit

Sum of wedging increased and then decreased

Percentage of curve

Average percentage decrease from the first visit to the latest

Percentage of curve

Average percentage increase from the first visit to the latest

Percentage of curve

Average percentage increase from the initial value to the maximum

Average percentage decrease from the maximum to the latest value

Progression (n = 20)

Vertebral wedging

11.4%

32.9%

40%

72.7%

48.6%

116%

67.9%

 

IVD wedging

8.6%

33.9%

28.6%

96.0%

62.9%

107%

67.6%

Non-progression (n = 12)

Vertebral wedging

20.8%

18.6%

16.7%

69.4%

62.5%

50.6%

17.5%

 

IVD wedging

16.7%

27.0%

16.7%

45.8%

66.7%

65.4%

28.8%