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Table 2 Comparisons of VAS scores at different time points between the two groups

From: Evaluation of the analgesic effect of vertebral cancellous bone infiltration anaesthesia during vertebroplasty

Time points

Group A (n = 59)

Group B (n = 53)

P value

Pre-operation

7.88 ± 1.08

7.75 ± 1.09

0.539

Establishment of the puncture channel

6.27 ± 1.17

6.33 ± 1.20

0.762

Pressure changes in the vertebral body

6.86 ± 1.29

8.33 ± 1.30

0.000

Bone cement injection

7.11 ± 1.19

8.71 ± 1.08

0.000

Immediately after the operation

3.35 ± 1.06

3.75 ± 1.01

0.045

Postoperative 2 h

2.52 ± 1.08

3.00 ± 0.96

0.017

Postoperative 1 day

2.16 ± 0.83

2.39 ± 0.90

0.171