Table 1 Basic data of two groups of patients.

From: Comparison of pedicle screw fixation with or without cement augmentation for treating single-segment isthmic spondylolisthesis in the osteoporotic spine

 

PMMA -PS group

n = 33

CPS group

n = 26

P value

Age (years)

64.67 ± 6.77

61.46 ± 6.26

0.067

Gender (male/female)

7/26

8/18

0.403

Bone mineral density (SD)

–3.35 ± 0.90

–3.25 ± 0.59

0.583

Follow-up time (m)

29.91 ± 9.15

29.00 ± 8.32

0.695

Surgical segment

L4/5

27

11

1.000

L5/S1

6

15

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