Objective To explore the application effect of evidence-based cluster nursing on the prevention of deep venous thrombosis(DVT)after major orthopedic surgery.Methods To select 90 cases of patients undergoing major orthopedic surgery in our department from July 2018 to May 2019 was set as the study objects,and they were randomly divided into a control group and an intervention group.The control group implemented routine care for prevention of DVT,and the intervention group adopted evidence-based cluster nursing prevention measures to compare the effects of two nursing measures to prevent DVT,inc...