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 |