Objective To evaluate the effect of 3D printing technology in the adjuvant therapy of acetabular fracture.Methods 70 cases of acetabular fractures receiving treatment from January,2014 to June,2016 were selected,and they were divided into group A( 3D printing assisted surgical group) and group B( traditional surgery group) according to random number table with 35 cases in each group. And then,operative time,bleeding volume,postoperative drainage volume,reset effect and the function of hip joint,etc.were com...