Anatomical concentric total hip arthroplasty

摘要

An apparatus and method for identifying and maintaining the concentric sphere centers of the femur and acetabulum during revision surgery or joint replacement so that the anatomical sphere center is maintained after surgery. New for projecting images onto anatomical features, such as exposed bone, to virtually fit trial prosthetic components, establish bone cutting markings, and establish the anatomical sphere center of the joint Techniques and devices are also disclosed.