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Table 2 Correlations of the preoperative parameters (n =50)

From: Cervical kyphosis in patients with Lenke type 1 adolescent idiopathic scoliosis: the prediction of thoracic inlet angle

  C2-7 angle TIA T1 slope C2-7 SVA PTK TK Cobb
C2-7 angle r / −0.635a −0.758a 0.373a −0.437a −0.463a −0.133
P / 0.000 0.000 0.008 0.001 0.001 0.359
TIA r −0.635a / 0.715a −0.258 0.126 0.583a 0.362a
P 0.000 / 0.000 0.070 0.381 0.000 0.010
T1 slope r −0.758a 0.715a / −0.074 0.438a 0.660a 0.349a
P 0.000 0.000 / 0.608 0.001 0.000 0.013
C2-7 SVA r 0.373a −0.258 −0.074 / 0.113 −0.104 0.054
P 0.008 0.070 0.608 / 0.433 0.472 0.708
PTK r −0.437a 0.126 0.438a 0.113 / −0.235 −0.335a
P 0.001 0.381 0.001 0.433 / 0.100 0.018
TK r −0.463a 0.583a 0.660a −0.104 −0.235 / 0.604a
P 0.001 0.000 0.000 0.472 0.100 / 0.000
Cobb r −0.133 0.362a 0.349a 0.054 −0.335a 0.604a /
P 0.359 0.010 0.013 0.708 0.018 0.000 /
  1. AIS adolescent idiopathic scoliosis, TIA thoracic inlet angle, SVA sagittal vertical axis, PTK proximal thoracic kyphosis, TK thoracic kyphosis, LL lumbar lordosis
  2. aSignificant difference