Table 2.

Comparison between the two study groups

	PVP	PKP	P
Surgical time (min)	56.92 ± 5.04	57.58 ± 4.04	0.64
Fluoroscopy frequency	98.53 ± 6.64	97.29 ± 4.16	0.41
VAS scores	2.03 ± 0.77	1.81 ± 0.79	0.36
Amount of bone cement(mL)	9.97 ± 0.62	7.79 ± 0.48	< 0.001
Cobb angle	20.20 ± 1.81	8.13 ± 1.67	< 0.001
Leakage rate of bone cement
Intervertebral space	6/30	1/31	0.03
Sandwich vertebral fracture	11/30	4/31	0.02

P < 0.05 was considered to indicate statistical significance