A fiducial attachment device for securement of one or more fiducials to a bone is provided that includes a bracket body having a first hole adapted to receive a first bone pin at a non-parallel angle α and having a second hole adapted to receive a second bone pin at a non-parallel angles α′；, the angles α and α′； being relative to a center line of said bracket body between the first hole and the second hole. The bracket body sometimes having an aperture therein for knob attachment. A fiducial attachment member extends away from the bracket body, where a distal end of the fiducial attachment member is an attachment point for the one or more fiducials. A method of using the fiducial attachment device is also provided. A system for using a fiducial attachment device of during a surgical procedure is also provided.
