Abstract: The application of artificial bone repair and manufacture is an important aspect of the reverse engineering technology research.Artificial joint replacement surgery has increasing popularity.After joint replacement surgery,infections may be frequent.The treatment of cement articulating spacer as artificial joints temporarily in postoperative has good utilize effect.However,because of bone cement hardening speed and doctor’s hand make proficiency,etc,cement articulating spacer production precision is low and is difficult to achieve good matching with human bones.Given the problems above,presented a cavity block of cement articulating spacer design process based on reverse engineering,to realize the fast design of the cavity block,which provided a simple and efficient method for bone cement spacer manufacturing.To take artificial knee joint as an example,the entire design process was implemented.

Key words: reverse engineering, Geomagic Studio14 software, knee joint, parametric modeling, Geomagic Design X software