Results Complex trauma,malignant tumors,blood hyperviscosity,old age,hypertension,diabetes mellitus and application drugs were high risk factors for postoperative DVT.

• 结果发生DVT的高危因素是复合创伤、恶性肿瘤、血粘度增高、老年病人、合并高血压病、糖尿病及术后常规应用止血药等。