求翻译：下肢深静脉血栓形成是常见病,手术后并发静脉血栓形成的发病率为27.8%,其中下肢静脉血栓形成占61.2%,下腔静脉血栓形成占14.3%,两者共占75.5%.是什么意思？

Deep vein thrombosis is common after surgery complicated by venous thrombosis incidence of 27.8%, deep vein thrombosis, which accounted for 61.2%, inferior vena cava thrombosis (14.3%), the two together account for 75.5%.

Lower limb deep vein thrombosis is a common disease, post-surgery complications and incidence of venous thrombosis, which is 27.8 % lower limb venous thrombosis accounted for 61.2 % and vena cava thrombosis accounted for 14.3 % and 75.5 % of the total.

The lower limb deep phlebothrombosis are common disease, after the surgery the concurrent phlebothrombosis disease incidence rate are 27.8%, in which lower limb phlebothrombosis account for 61.2%, the vena cava inferior thrombus form account for 14.3%, both altogether account for 75.5%.

Deep venous thrombosis of lower extremities are common diseases, the incidence of postoperative venous thrombosis is 27.8%, which 61.2% of lower extremity venous thrombosis, inferior vena cava thrombosis and 14.3%, both 75.5%.

Deep venous thrombosis of lower extremities are common diseases, the incidence of postoperative venous thrombosis is 27.8%, which 61.2% of lower extremity venous thrombosis, inferior vena cava thrombosis and 14.3%, both 75.5%.