Tumors of the spine

Table 2 Tokuhashi classification[14]

Characteristic	Score
General condition (performance status)
Poor (10%-40%)	0
Moderate (50%-70%)	1
Good (80%-100%)	2
No. of extraspinal bone metastasis foci
≥ 3	0
1-2	1
0	2
No. of extraspinal metastasis foci in the vertebral body
≥ 3	0
1-2	1
0	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
Palsy
Complete (Frankel A, B)	0
Incomplete (Frankel C, D)	1
None (Frankel E)	2

Criteria of predicted prognosis: Total score (TS) 0-8: < 6 mo; TS 9-11: ≥ 6 mo; TS 12-15: ≥ 1 year.