Table 2 Intraoperative and postoperative outcomes

Total blood loss (ml)^b

663.3 ± 46.0

679.9 ± 57.1

751.7 ± 56.2

< 0.001

0.091

< 0.001

< 0.001

Intraoperative blood loss (ml)^b

120.2 ± 18.7

131.0 ± 16.3

209.3 ± 20.1

< 0.001

< 0.001

< 0.001

< 0.001

Hidden blood loss (ml)^b

543.1 ± 50.8

548.9 ± 60.4

542.4 ± 60.1

0.682

0.772

0.996

0.706

Maximum Hb change (g/l)^b

22.5 ± 4.7

23.1 ± 2.9

26.0 ± 4.1

< 0.001

0.603

< 0.001

< 0.001

Duration of surgery (min)^b

62.3 ± 4.7

65.7 ± 4.1

66.9 ± 4.2

< 0.001

< 0.001

< 0.001

0.124

Patients transfused (N, %)^a

0 (0)

1 (1.0)

1 (1.1)

0.651

0.376

0.341

0.919

Hospital stay after surgery (day)^b

3.2 ± 0.7

2.9 ± 1.0

3.1 ± 1.3

0.250

0.252

0.901

0.470

Range of motion at discharge (°)^b

110.7 ± 7.1

109.3 ± 13.4

109.1 ± 8.5

0.252

0.224

0.55

0.824

HSS score at 3M^b

85.4 ± 2.9

85.9 ± 2.1

85.2 ± 3.1

0.264

0.456

0.956

0.276

VAS score at 3M^b

1.1 ± 0.8

1.0 ± 0.7

1.0 ± 0.7

0.478

0.604

0.485

0.97