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ABSTRACT Venous thromboembolism is responsible for 500,000 deaths annually in industrialized countries. It is probably the most common preventable cause of death in elective orthopedic surgery patients. Rates of deep vein thrombosis (DVT) and fatal pulmonary embolism (PE) in unprotected orthopedic patient populations are high. The overall DVT rate is >40% in patients undergoing hip or knee arthroplasty or suffering from multiple injuries. The proximal DVT rate for these patients is ≥15%, and the fatal PE rate is ≥1%. Risk factors associated with venous thromboembolism are related to the vascular injury, activation of blood coagulation, and venous stasis. Lower extremity orthopedic procedures carry a risk greater than that of surgery itself. Thus, orthopedic patients are at high risk for venous thromboembolic conditions. A systematic assessment of this risk should be performed in every patient, and an appropriate management plan should be implemented.
Paiement et al. (Sun,) studied this question.