Table 2 Blood loss, transfusion requirement, and wound complications

 Day 2

9.9 ± 1.8

9.6 ± 1.5

9.0 ± 1.3

0.030

 Day 5

10.2 ± 1.2

10.1 ± 1.0

9.6 ± 1.2

0.067

Estimated blood loss (ml)

1050.5 ± 450.6

1078.1 ± 633.9

1391 ± 554.3

0.011

Drained blood volume (ml)

545.1 ± 186.5

535.5 ± 166.1

652.6 ± 211.0

0.010

Hidden blood loss

505.3 ± 469.9

573.1 ± 690.4

739.2 ± 557.0

0.145

RBC transfusion (unit)

0.9 ± 0.8

1.0 ± 0.7

1.5 ± 1.0

0.004

ROM at post OP 5 day (degree)

92.5 ± 7.8

84.1 ± 10.6

90.8 ± 9.8

<0.001

 Day 2^a

5 (3–9)

6 (3–9)

5 (3–9)

0.022

 Day 5^a

4 (2–9)

5 (3–9)

4 (2–6)

0.009

 Major bruising (n)

2

3

2

0.860

 Blister (n)

1

2

1

0.774

 Oozing (n)

2

4

1

0.349

 Superficial infection (n)

0

1

0

0.368