Table 1 General information of patients.

From: Clinical efficacy of Bone Cement-injectable Cannulated Pedicle Screw Short Segment Fixation for Lumbar Spondylolisthesis with Osteoporosise

Variable

Value

Average age

63.3 ± 7.8(56–79)

Gender (male: female)

9:14

Weight (kg)

48.5 ± 10.8

BMI (kg/m2)

19.0 ± 1.5

Jikei BMD classification

Level II

13/23 (56.5%)

Level III

10/23 (43.5%)

Meyerding classification of spondylolysis

Degree I

10/23 (43.5%)

Degree II

9/23 (39.1%)

Degree III

4/23 (17.4%)

Operation time (min)

145 ± 35 (85–220)

Blood loss (ml)

225 ± 87 (150–400)

Hospital stay (d)

7.9 ± 1.5(6–11)

Complication

Superficial infection of the wound

1/6 (16.7%)

Bone cement leakage

4/6 (66.7%)

Cerebrospinal fluid leakage

1/6 (16.7%)

Fusion rate

100%

The number of conventional screws /total number of conventional screws

0/7

The number of loose CICPSs/total number of CICPSs

0/85