Table 3.

Radiological outcomes of the two groups

Time	Parameter	Group U	Group B	p-value
		N = 24	N = 26
Preoperative	Anterior vertebral body	41.8 ± 7.5	42.9 ± 8.0	0.63
	height variation, %
	Middle vertebral body	46.9 ± 5.4	47.3 ± 6.1	0.81
	height variation, %
Three days	Anterior vertebral body	56.3 ± 6.4*	59.0 ± 5.2†	0.11
postoperative	height variation, %
	Middle vertebral body	58.5 ± 4.8*	59.6 ± 5.5†	0.44
	height variation, %
Two years	Anterior vertebral body	53.0 ± 5.9*	55.6 ± 5.3†	0.11
postoperative	height variation, %
	Middle vertebral body	55.4 ± 5.0*	56.8 ± 5.4†	0.34
	height variation, %

Group U: PVP through unipedicular approach

Group B: PVP through bipedicular approach

P values for between-group comparison were determined by t tests

*P = 0.000, compared to Preoperative outcomes in Group U

†P = 0.000, compared to Preoperative outcomes in Group B