Table 3 Comparison of preoperative and postoperative VAS scores among the three groups.

From: Impact of intravertebral cleft types on percutaneous kyphoplasty outcomes in osteoporotic vertebral compression fractures

Groups

VAS score

Preoperative

Postoperative

Z

P

Liquid-IVC

7

2

−7.535

0.001

Gas-IVC

7

2

−9.270

0.001

Non-IVC

7

2

−8.849

0.001

Z

1.891

2.937

–

–

P

0.388

0.230

–

–

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