Table 4 Comparison of different surgical methods

Operation time

2012.5-2020.1

2018.1-2020.7

2010.8-2018.1

Gender, M: F

8: 10

4: 8

6: 5

0.612

Age, y (sd)

34.3(11.4)

36.0(14.5)

32.0(13.2)

0.758

Mean hospital stay, d (sd)

18.9(7.8)

14.5(4.7)

20.7(8.0)

0.105

Location of tumor, T: L

14: 4

8: 4

9: 2

0.725

Resected vertebrae, n (sd)

1.61(0.85)

1.75(0.97)

1.82(0.98)

0.858

Preoperative embolization, n (%)

8(44.4%)

9(75%)

5(45.5%)

0.232

Recurrent tumor, n (%)

4(22.2%)

0

2(18.2%)

0.209

Mean duration of surgery, min (sd)

568(184)

418(132)

484(182)

0.084

Mean estimated blood loss, ml (sd)

2594(1600)

1184(833)

2459(1589)

0.028

Rate of perioperative complications, n (%)

15(83.3%)

8(66.7%)

7(63.6%)

0.484

Mean number of complications, n (sd)

1.89(1.41)

1.25(1.29)

0.82(0.75)

0.118

Mean number of major complications, n (sd)

0.67(0.77)

0.83(1.03)

0.18(0.40)

0.145

Mean number of minor complications, n (sd)

1.22(0.94)

0.42(0.67)

0.64(0.67)

0.032

Intralesional resection, n (%)

16(88.9%)

3(25%)

11(100%)

<0.001

Local recurrence, n (%)

2(11.1%)

1(8.3%)

1(9.1%)

1.000