. 2013 Jan 23;22(6):1255–1263. doi: 10.1007/s00586-012-2651-y

Table 2.

Pearson correlation analysis of (1) pre- and postoperative apical vertebra (APV) vector parameters with the Cobb angle value of the main scoliotic curve; (2) preop–postop change in APV vector parameters with change in Cobb angle value of the main scoliotic curve after correction

	Positive correlations	APV-α_H		APV-A_x		APV-B_x
	Positive correlations	Preop	Postop	Preop	Postop	Preop	Postop
1	Cobb	0.46**	0.31*	0.68**	0.35**	0.70**	0.43**
		ΔAPV-α_H (°)		ΔAPV-A_x		ΔAPV-B_x
2	ΔCobb	0.12^†		0.45**		0.48**

α_H horizontal plane vertebra vector angle relative to the y axis, A_x vertebra vector initial point A coordinate x, B_x vertebra vector terminal point B coordinate x, Δ delta value of corresponding parameter change

* p < 0.05; ** p < 0.01; ^†p value not significant