A second puncture and injection technique for treating osteoporotic vertebral compression fractures

Table 4 Comparisons of middle vertebral height at the pre-operation, 3 days post-operation, and final follow-up between the two groups

	Group A (n = 86)	Group B (n = 107)	t	p
Pre-operation	2.36 ± 0.26	2.38 ± 0.18	− 0.447	0.655
3 days post-operation	2.49 ± 0.26*	2.54 ± 0.20*	− 1.362	0.175
Final follow-up	2.47 ± 0.26	2.40 ± 0.17	2.069	0.040
Restoration of middle vertebral height at the 3 days post-op	0.13 ± 0.12	0.16 ± 0.11	− 1.830	0.069
Loss of middle vertebral height at the final follow-up	0.02 ± 0.36	0.14 ± 0.13	8.525	0.000

Restoration of middle vertebral height: value of 3 days post-operation minus value of pre-operation. Loss of vertebral height: value of 3 days post-operation minus value of final follow-up
*Compared with pre-operation of the same group, P < 0.05

ISSN: 1749-799X