Table 2 The characteristics of the patients in each group

Age (years)

78.32 ± 8.24

77.81 ± 8.14

0.528

Gender (M:F)

16:34

15:35

0.232

Operative side (left: right)

28:22

27:23

0.418

BMI

27.5

28

0.311

Pre-operative Hb

10.5

10.8

0.134

ASA grade (II/III, cases)

41:9

40:10

0.146

Pre-operative HHS

48.3

49.3

0.15

Mean operating time (min)

41.82 ± 3.53

42.34±3.21

0.162

Mean volume of blood loss (ml)

137.54 ± 20.22

141.23 ± 22.31

0.231