Methods:Taking advantage of biomemorial effect of nitinol and anatomic character of acetabulum,a new internal fixation system for ac-etabular fracture was designed,named acetabular tridimensional system (ATM).

• 方法:依髋臼的解剖特点与镍钛合金特性,研制髋臼三维记忆内固定系统:由前柱臼A;