Deep-vein-thrombosis | |
Swelling (circumferential diameter increase >2 cm) | 1 point |
Warmth | 1 point |
Discolored skin | 1 point |
Visible surface vein | 1 point |
Positive Homan sign (Calf tenderness) | 1 point |
Pulmonary embolism | |
Sudden dyspnea or tachypnea | 1 point |
Chest pain | 1 point |
Cough of hemoptysis | 1 point |
Mean total blood loss in milliliter (SD) | 589 (245) | 572 (286) | 0.83 |
Mean amount of blood transfusion in unit (SD) | 0.34 (0.6) | 0.34 (0.8) | 1.0 |
Mean hematoma grading score (SD) | |||
Third day after surgery | 0.37 (0.5) | 0.43 (0.6) | 0.67 |
Seventh day after surgery | 0.37 (0.6) | 0.68 (0.9) | 0.11 |
No hematoma or hemarthrosis | 0 |
Minor hematoma around the wound with no hemarthrosis | I |
Moderate hematoma around the wound extending to the calf, thigh, or popliteal region with hemarthrosis with no rehabilitation restriction | II |
Severe hematoma or hemarthrosis threatening wound healing, requiring knee aspiration, reoperation, or causing delay rehabilitation | III |
Mean DVT clinical score (SD) | |||
3 days after surgery | 0.28 | 0.31 | 0.63 |
7 days after surgery | 0.21 | 0.18 | 0.95 |
Age (years) | 68 (7.2) | 69 (7.4) | 0.63 |
Women | 23 (71%) | 27 (84%) | 0.22 |
Comorbidities | |||
HT | 20 (62%) | 22 (68%) | 0.59 |
DM type 2 | 4 (12%) | 4 (12%) | 1 |
Ischemic heart disease | 1 (3%) | 0 | 0.31 |
Cerebrovascular disease | 1 (3%) | 0 | 0.31 |
Previous history of inactive cancer | 0 | 1 (3%) | 0.31 |
Body mass index | 27.5 (4.8) | 27.6 (4.2) | 0.91 |
Preoperative oxford knee score | 21.5 (7.2) | 21.4 (5.5) | 0.98 |
Operative time (min) | 114.5 (13.1) | 112.9 (23.2) | 0.74 |
Length of hospital stay (days) | 7.4 (1.2) | 8.4 (2.1) | 0.02 |
Minor bleeding events, | 3 (9.3) | 4 (12.5) | |
Macroscopic hematuria | 0 | 0 | |
Epistaxis | 0 | 1 | |
Skin bruise | 2 | 3 | |
Grade II hemarthrosis | 2 | 2 | |
Clinically relevant nonmajor bleeding | |||
Grade III hemarthrosis, | 0 (0) | 1 (3.1) | 0.31 |
Major bleeding events | |||
Major organ bleeding | 0 (0) | 0 (0) | 1 |
Required more than two units blood transfusion | 0 (0) | 1 (3.1) | 0.31 |
The composite of major and clinically relevant nonmajor bleeding events, | 0 (0) | 2 (6.2) | 0.15 |
Total bleeding events, | 3 (9.3) | 6 (18.7) | 0.28 |