Thromboembolism prophylaxis in orthopaedic surgery and trauma

Thromboembolism prophylaxis is well-established in major orthopaedic surgery (hip and knee arthroplasty and hip fracture surgery), with low-molecular-weight heparins the most often chosen agent. In recent years, however, direct-acting anticoagulants have been gaining ground and can be used in this scenario (except for hip fracture surgery). In the US, even aspirin could be indicated for low-risk patients who undergo hip or knee arthroplasty. For other orthopaedic procedures (leg surgery below the knee, ankle and foot; knee arthroscopy; arm surgery; and spine surgery), thromboembolism prophylaxis requires individualisation based on the patient's risk factors and the surgery's characteristics, given that the risk of venous thromboembolic disease is minor. In this patient group, the agent of choice is low-molecular-weight heparin, given that direct-acting anticoagulants are not approved for these types of surgery.