Metastatic spinal tumour

Unknown primary tumour

Known primary tumour

P

3 month duration of symptoms

4/5

32/35

0.4

Neurological out come after surgery

4/5 (80%)

30/35 (85.7%)

0.7

Post-surgical complication rate

25%

28%

0.6

Presence of other skeletal or visceral involvement

0

6 (17.15)

0.03