Table 1 Comparison of the radiofrequency bipolar hemostatic sealer and control groups

Age (years)

64 ± 14

59 ± 13

0.17

Sex (male/female)

18/18

23/15

0.33

Body mass (kg)

76.6 ± 18.4

74.1 ± 21.2

0.62

Spinal levels fused (median (IQR))

4 (3, 9)

4 (2, 7)

0.23

Spinal levels fused (mean ± SD)

6.1 ± 4.5

4.9 ± 3.7

0.22

Thoracic fusion

4 (11.1%)

4 (10.5%)

0.67

Lumbar fusion

18 (50%)

20(52.6%)

0.56

Thoracolumbar fusion

14 (38.9%)

14 (36.9%)

0.72

Surgeon specialty (neuro/ortho)

12/24

12/26

0.52

Duration of surgery (h)

6.07 ± 0.42

6.14 ± 0.37

0.89

Revision surgery

8 (22.2%)

7 (18.4%)

0.78

ASA class

2.7 ± 0.1

2.5 ± 0.1

0.19