Table 5.

Comparison of radiographic indexes between GI and GII

Items of LKA (${}^{\circ }$), VWA (${}^{\circ }$) or FVHr (%)	PVP GI ($n=$ 27)	PSSF GII ($n=$ 33)	$P$ value
LKA (${}^{\circ }$) pre	11.65 $\pm$ 7.21	12.18 $\pm$ 6.03	0.83
LKA (${}^{\circ }$) 1 w post-	10.80 $\pm$ 5.97	6.56 $\pm$ 3.61	0.01${}^{*}$
Correction (${}^{\circ }$)	0.86 $\pm$ 2.40	5.62 $\pm$ 4.62	0.01${}^{*}$
LKA (${}^{\circ }$) 3 m post-	10.20 $\pm$ 5.57	6.82 $\pm$ 3.52	0.024${}^{*}$
Correction (${}^{\circ }$)	1.46 $\pm$ 3.05	5.37 $\pm$ 4.16	0.01${}^{*}$
LKA (${}^{\circ }$) 2y post-	10.89 $\pm$ 6.43	6.92 $\pm$ 3.78	0.038${}^{*}$
Correction (${}^{\circ }$)	0.77 $\pm$ 1.97	5.26 $\pm$ 4.49	0.017${}^{*}$
VWA (${}^{\circ }$) pre	14.19 $\pm$ 9.79	14.35 $\pm$ 6.08	0.92
VWA (${}^{\circ }$) 1 w post-	13.21 $\pm$ 10.49	8.72 $\pm$ 3.59	0.024${}^{*}$
Correction (${}^{\circ }$)	0.98 $\pm$ 4.39	5.62 $\pm$ 3.93	0.018${}^{*}$
VWA (${}^{\circ }$) 3 m post-	13.34 $\pm$ 8.58	8.58 $\pm$ 4.12	0.033${}^{*}$
Correction (${}^{\circ }$)	0.85 $\pm$ 4.79	5.77 $\pm$ 3.32	0.01${}^{*}$
VWA (${}^{\circ }$) 2 y post-	13.48 $\pm$ 9.17	8.31 $\pm$ 4.24	0.011${}^{*}$
Correction (${}^{\circ }$)	0.71 $\pm$ 3.86	6.04 $\pm$ 3.76	0.01${}^{*}$
FVHr (%) pre	23.88 $\pm$ 6.42	26.34 $\pm$ 11.78	0.35
FVHr (%) 1 w post-	16.37 $\pm$ 11.11	10.44 $\pm$ 7.18	0.029${}^{*}$
Correction (%)	7.51 $\pm$ 10.25	15.89 $\pm$ 8.74	0.01${}^{*}$
FVHr (%) 3 m post-	19.42 $\pm$ 13.28	11.10 $\pm$ 9.50	0.043${}^{*}$
Correction (%)	4.46 $\pm$ 11.50	15.24 $\pm$ 8.69	0.01${}^{*}$
FVHr (%) 2 y post-	18.49 $\pm$ 13.54	12.69 $\pm$ 7.54	0.011${}^{*}$
Correction (%)	5.39 $\pm$ 11.91	13.65 $\pm$ 10.53	0.01${}^{*}$

Note: The description of statistics is Mean $\pm$ SD. (${}^{*}$ 0.05); Correction: D-value between pre- and specific time point postoperative. LKA: the local kyphotic angle; VWA: the vertebral wedge angle; FVHr: he fractured vertebral height (FVH) ratio.