Authors: Xiaoxi Ji (jixiaoxi87@sjtu.edu.cn) Chun Bi (bichun1616@163.com) Fang Wang (wangfang7787@gmail.com) Yuchen Jiang (yayafirst1988@gmail.com) Dongmei Wang (dmw710801@hotmail.com)32 Abstract 33 Purpose: To obtain the safe and effective screw angles and depths at acetabular area ...