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Table 1 A revised Tokuhashi score [13]

From: Prognostic factors in patients with metastatic spine tumors derived from lung cancer—a novel scoring system for predicting life expectancy

Predictive factor

Score (points)

General condition

 Poor (KPS 10–40%)

0

 Moderate (KPS 50–70%)

1

 Good (KPS 80–100%)

2

Number of extraspinal bone metastases foci

 ≥ 3

0

 1–2

1

 0

2

Number of metastases in the vertebral body

 ≥ 3

0

 2

1

 1

2

Metastases to the major internal organs

 Unremovable

0

 Removable

1

 No metastases

2

Primary site of the cancer

 Lung, osteosarcoma, stomach, bladder, esophagus, pancreas

0

 Liver, gallbladder, unidentified

1

 Others

2

 Kidney, uterus

3

 Rectum

4

 Thyroid, prostate, breast, carcinoid tumor

5

Spinal cord palsy

 Complete (Frankel A, B)

0

 Incomplete (Frankel C, D)

1

 None (Frankel E)

2

Total points

Predicted prognosis

 0–8

< 6 months

 9–11

≥ 6 months

 12–15

≥ 1 year

  1. KPS indicates Karnofsky’ s performance status