Table 1 Baseline data

Age

66.4 ± 2.2

65.4 ± 3.3

0.792

Gender

 Female

4

5

0.462

 Male

15

10

ASA score

 II

8

10

0.185

 III

11

5

Tumor pathology

 Renal

2

4

0.331

 Lung

5

4

 Prostate

8

2

 Multiple myeloma

1

3

 Uroepithelium

1

1

 Esophageal

0

1

 Colon

1

0

 Breast

1

0

Blood supply

 Hypervascular (renal)

2

4

0.370

 Non-hyper vascular (non-renal)

17

11

Clinical manifestation

 Spinal nerve root symptom

15

14

0.355

 Spinal cord symptom

4

1

Tokuhashi score

7.7 ± 0.5

7.5 ± 0.6

0.784