Conclusions The risk of deep venous thrombosis and pulmonary embolism is relatively low following elective spine surgery, particularly for patients who receive pharmacologic prophylaxis.

Conclusion Malignant tumor and surgery, especially gynecological operations, trauma and fracture, and hospitalization are the main risk factors of DVT.

Objective to explore the experience of indwelling catheter thrombolysis of acute deep vein thrombosis of the lower extremity after thrombectomy.