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Table 3 Correlations between anchor density and curve correction in different curve sizes and flexibilities

From: The correlations between the anchor density and the curve correction of adolescent idiopathic scoliosis surgery

Parameters Small curve
(40°-60°)(N=89)
Large curve
(>60°)(N=38)
Stiff curve (flexibility ≤ 40%)
(N=78)
Flexible curve
(flexibility > 40%)(N=49)
r p r p r p r p
Correction rate -0.04 0.69 -0.10 0.54 -0.04 0.73 -0.05 0.71
Correction index -0.03 0.78 0.02 0.92 -0.04 0.71 -0.15 0.30
TK correction 0.38 <0.001 -0.06 0.72 0.24 0.06 0.34 0.01
LL correction 0.01 0.90 -0.15 0.39 -0.07 0.54 0.06 0.69
AVR correction -0.04 0.70 -0.01 0.95 -0.08 0.48 0.07 0.66
AVT correction 0.05 0.65 0.01 0.96 -0.12 0.29 0.23 0.12
  1. r Pearson’s correlation coefficient, p p value
  2. TK thoracic kyphosis, LL lumbar lordosis, AVR apical vertebral rotation, AVT apical vertebral translation