68-5

44/120

-------6(6.3%)89(93.7%)20.0% on POD 0, 46.7% on POD 1, 13.3% on POD 3, 6.7% on POD 7, and 0% on POD 14 and 21.DiscussionTHA is a surgical procedure associated with a On POD 3 and POD 7, the D-dimer value was significantly higher in the DVT-positive group compared with the DVT-negative group (POD 3: 6.08 µg/ml in positive group vs. 4.39 µg/ml in negative group, P=0.0014; POD 7: 10.65 µg/ml in positive group vs. 8.79 µg/ml in negative group, P=0.021). POD, post-operative day; DVT, deep venous thrombosis494No. of patients (total 348)　Male (64)　Female (284) (P=0.0002)Age(years) （P=0.041）Operation time (min) （P=0.4509）BMI (%) （P=0.2956）Deep Venous Thrombosis　Proximal 　Distal 　Symptomatic PESide of VTE　Operated side　Non-operated side　BothBMI, body mass index; DVT, deep venous thrombosis; PE, pulmonary embolism, Proximal= iliac-popliteal vein, Distal=lower leg veinTable 3　Characteristics of patients in the DVT-positive groupDVT-Figure 1　Changes in D-dimer valuesDVT+95(27.2%)6(9.4%)89(31.3%)73.0±7.9(55-84)135.1±41.0(93-154)22.4±2.2(18.0-26.2)39(41.0%)44(46.1%)12(12.8%)high risk of DVT. Therefore, physical and drug prophylaxis is recommended for THA perfor-mance. In our hospital, all patients were adminis-tered enoxaparin for thromboprophylaxis at 2,000 units twice a day for two weeks after surgery. 0253(72.8%)58(90.6%)195(68.7%)63.3±11.2(39-90)125.9±20.3(104-171)22.9±2.9(17.6-24.7)