Table 2 Operative data, laboratory outcomes, and complications

Total operation time (min)

52.81 ± 5.76

58.00 ± 7.33

0.023

Amount of surgical drain (mL)

66.25 ± 20.62

59.50 ± 37.52

0.498

Length of hospital stay (days)

2.62 ± 0.72

4.55 ± 1.96

< 0.001

 Preoperative

0.12 ± 0.27

0.11 ± 0.20

0.963

 Postoperative day 1

0.53 ± 0.39

2.45 ± 0.42

0.001

 Postoperative day 2

0.23 ± 0.44

1.09 ± 0.72

0.03

 Postoperative day 7

0.17 ± 0.27

0.20 ± 0.46

0.29

 Preoperative

106.21 ± 50.75

102.35 ± 57.20

0.927

 Postoperative day 1

128.52 ± 48.56

178.34 ± 77.23

0.014

 Postoperative day 2

103.38 ± 46.62

113.52 ± 51.20

0.168

1.000†

 Incidental durotomy

1 (6.3%)

2 (10%)

 Epidual hematoma

0 (0%)

1 (5%)

 Local recurrence

2 (12.5%)

3 (15%)