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

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

		C2-7 angle	TIA	T1 slope	C2-7 SVA	PTK	TK	Cobb
C2-7 angle	r	/	−0.635^a	−0.758^a	0.373^a	−0.437^a	−0.463^a	−0.133
C2-7 angle	P	/	0.000	0.000	0.008	0.001	0.001	0.359
TIA	r	−0.635^a	/	0.715^a	−0.258	0.126	0.583^a	0.362^a
TIA	P	0.000	/	0.000	0.070	0.381	0.000	0.010
T1 slope	r	−0.758^a	0.715^a	/	−0.074	0.438^a	0.660^a	0.349^a
T1 slope	P	0.000	0.000	/	0.608	0.001	0.000	0.013
C2-7 SVA	r	0.373^a	−0.258	−0.074	/	0.113	−0.104	0.054
C2-7 SVA	P	0.008	0.070	0.608	/	0.433	0.472	0.708
PTK	r	−0.437^a	0.126	0.438^a	0.113	/	−0.235	−0.335^a
PTK	P	0.001	0.381	0.001	0.433	/	0.100	0.018
TK	r	−0.463^a	0.583^a	0.660^a	−0.104	−0.235	/	0.604^a
TK	P	0.001	0.000	0.000	0.472	0.100	/	0.000
Cobb	r	−0.133	0.362^a	0.349^a	0.054	−0.335^a	0.604^a	/
Cobb	P	0.359	0.010	0.013	0.708	0.018	0.000	/

AIS adolescent idiopathic scoliosis, TIA thoracic inlet angle, SVA sagittal vertical axis, PTK proximal thoracic kyphosis, TK thoracic kyphosis, LL lumbar lordosis
^aSignificant difference

ISSN: 1471-2474