Correlation Analysis between Residual Pain after Vertebral Augmentation and the Diffusion Distribution of Bone Cement: A Retrospective Cohort Study

Table 3

Comparison of VAS and ODI before and after VA.

	Mean ± SD (range)	95% CI	value
VAS (0–10), (n = 36)
Paired 1	7.19 ± 0.79 (6–9)	3.547–4.008	<0.001
	3.42 ± 0.69 (2–5)
Paired 2	3.42 ± 0.69 (2–5)	1.413–2.031	<0.001
	1.69 ± 0.79 (0–3)
ODI (0–100), (n = 36)
Paired 1	76.78 ± 5.09 (64–88)	57.331–61.447	<0.001
	17.39 ± 4.99 (8–28)
Paired 2	17.39 ± 4.99 (8–28)	3.660–7.007	<0.001
	12.06 ± 4.18 (2–20)

Note: paired sample t-test. Paired 1, preoperation was paired with the 2nd day postoperation. Paired 2 and 2nd day postoperation were paired with the last follow-up.