Clinical application of thromboelastography in the prevention of lower extremity intermuscular venous thrombosis after knee arthroscopy

Objective To explore the guiding value of thromboelastography (TEG) in the formulation of personalized anticoagulation regimen after knee arthroscopy. Methods A total of 50 patients who underwent knee arthroscopy in our hospital from April to August 2023 were randomly divided into two groups. Twenty-seven patients with routine anticoagulation were selected as the control group, and 23 patients with personalized anticoagulation were selected as the experimental group. Conventional anticoagulation was a prophylactic dose of low molecular weight heparin calcium (LMWHC) selected according to body weight, once a day to 7 days after surgery. Personalized anticoagulation was performed according to the prophylactic dose of LMWHC until postoperative day 3. On postoperative day 3, LMWHC was changed to aspirin according to the TEG return index (MA>70 mm, α Angle >72°, K value