Development of postoperative DVT correlated significantly with the presence of the following risk factors: age 76 years or older, preoperative MAX-SV diameter of 6.0 mm or greater, and a preoperative D-dimer value of 1.1 μg/dl or higher. Considering the risk-benefit ratio, avoiding preventive anticoagulant therapy following TKA can be an option for patients with osteoarthritis with one or no risk factors.
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