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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