Table 1 Demographic data of 16 spinal SS patients

Sex, M/F

11/5

Age, ≤ 30/> 30

8/8

Preoperative KPS, < 60/60–80/≥ 80

12/4/0

Preoperative Frankel scores, A–C/D–E

7/9

Preoperative VAS scores, ≤ 5/> 5

6/10

Tumour size (mean ± SD, cm)

7.57 ± 3.33

Recurrent or metastasis lesions, no/yes

8/8

Preoperative chemotherapy, no/yes

13/3

Operation time (mean ± SD, min)

292.9 ± 121.2

Intraoperative blood loss (mean ± SD, ml)

1547 ± 1152.8

Complication, no/yes

15/1

Postoperative recurrence, no/yes

12/4

Postoperative distant metastasis, no/yes

13/3

Adjuvant chemotherapy, no/yes

10/6

Adjuvant radiotherapy, no/yes

10/6