Table 1 Revised Tokuhashi Score System for the Prognosis of Spinal Metastasis
Factors | Score |
|---|---|
General condition (Karnofsky Performance Status, KPS) | |
 Poor (KPS 10–40) | 0 |
 Moderate (KPS 50–70) | 1 |
Good (KPS 80–100) | 2 |
Extraspinal bone metastases | |
 ≥3 | 0 |
 1–2 | 1 |
 0 | 2 |
No. 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, breast, prostate, carcinoid tumor | 5 |
Neurological Status | |
 Complete (Frankel A, B) | 0 |
 Incomplete (Frankel C, D) | 1 |
 None (Frankel E) | 2 |