A fluoroscopic image guided surgery system, comprising a C-arm fluoroscope for obtaining fluoroscopic images of an object bone, the C-arm fluoroscope including at least one set of emitters; a reference bar capable of attaching to an object bone, the reference bar including emitters; a surgical instrument...http://www.google.com/patents/US20030060703?utm_source=gb-gplus-sharePatent US20030060703 - Fluoroscopic image guided orthopaedic surgery system with intraoperative registration
