目的探讨下肢深静脉血栓形成患者植入永久性腔静脉滤器的临床应用。
Objective To evaluate the clinical application of permanent vena cava filter in patients with deep venous thrombosis.
方法：回顾性分析240例下肢深静脉血栓形成的患者资料，并对部分患者进行随访。
Methods Retrospective review of the clinical data of 240 cases of DVT of lower extremities was done with follow-up studies.
结论：行选择性脊柱手术的患者术后发生下肢深静脉血栓及肺栓塞风险相对低，尤其是应用药物预防的患者。
Conclusions The risk of deep venous thrombosis and pulmonary embolism is relatively low following elective spine surgery, particularly for patients who receive pharmacologic prophylaxis.
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