number

Estimated true blood loss

Pre op Hb in gm/dl

Hemoglobin drop in gm/dl

Transfusions in unit

Surgery time in min

Full tourniquet

63

941.57 ± 530.99

11.3 ± 1.35

2.5 ± 1.12

0.70 ± 0.78

85.52 ± 8.82

Only during cementing

12

1053.25 ± 389.32

11.63 ± 1.56

2.8 ± 1.12

1.17 ± 1.11

92.67 ± 11.7

P value

0.40

0.49

0.41

0.19

0.07