venous thromboembolism
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Patients undergoing knee and hip replacement operation; 2. Spinal surgery patients; 3. Patients with hip fractures; 4. Patients with spinal fracture surgery.
Exclusion criteria
Exclusion criteria: 1. Patients have a recent history of inflammatory disease; 2. Patients have liver, kidney disease medical history; 3. Patients have recent surgery or trauma histories; 4. Patients have the past history of thrombosis; 5. Patients aged over 70 years; 6. Patients have unexplained abnormal level of D-dimer before operation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| D-dimer; | — |
Secondary
| Measure | Time frame |
|---|---|
| Fibrin degradation product; | — |
Countries
China