Table 1 Patient characteristics
From: Transfusions and blood loss in total hip and knee arthroplasty: a prospective observational study
Hip arthroplasty | Knee arthroplasty | p value | |
|---|---|---|---|
n = 114 | n = 79 | (hip vs. knee) | |
Male gender | 62 (54%) | 32 (41%) | 0.058 |
Preop medication | |||
NSAID | 30 (26%) | 16 (20%) | 0.33 |
Acetylsalicylic acid | 18 (16%) | 18 (23%) | 0.22 |
SSRI | 10 (9%) | 9 (11%) | 0.55 |
Thromboprophylaxis | |||
Dabigatran | 104 (91%) | 75 (95%) | 0.33 |
LMWH | 10 (9%) | 4 (5%) | |
Anesthesia | |||
Spinal | 95 (83%) | 65 (82%) | 0.85 |
General | 19 (17%) | 14 (18%) | |
BMI (kg/ m 2 ) | 27 ± 4.1 (17–40) | 30 ± 4.5 (22–49) | <0.001 |
Age (years) | 66 ± 12 | 69 ± 10 | 0.086 |
Hemoglobin (g/ L) | 136 ± 13 | 133 ± 12 | 0.24 |
Platelet count (10 9 /L) | 283 ± 65 | 280 ± 72 | 0.81 |
PT (INR) | 1.0 ± 0.1 | 1.0 ± 0.1 | 0.77 |
aPTT (s) | 34 ± 3.8 | 33 ± 3.3 | 0.57 |
Operation time (min) | 125 ± 28 | 113 ± 28 | 0.004 |
RBC transfusion | 21 (18%) | 9 (11%) | 0.18 |
RBC transfusion (units) | 0 (0–4) | 0 (0–3) | 0.22 |
EBL (mL) | 984 (0–4571) | 789 (0–1927) | 0.001 |
EBL/ kg ( mL /kg) | 12 (0–33) | 9 (0–23) | <0.001 |
Cellsaver ( mL) | 0 (0–1200) | 0 | 0.007 |