1. A system for improving the accuracy of preprogrammed surgery on a body having an inside portion that is in need of said surgery and an outside portion that is moveable during said surgery, comprising: a plurality of markers, that are adapted to emit a corresponding plurality of signals, and that are adapted to be disposed on said moveable outside portion of said body proximate to said inside portion in need of said surgery; wherein said markers, respectively, comprise a disposable support element, adapted to be attached to an outside portion of said body, and a signal emitter operatively associated with said support element; means for causing said emitters to respectively emit signals under conditions sufficient to differentiate which emitter is sending each of said signals, respectively; wherein emitted signals are adapted to enable tracking the movements of said movable outside portion of said body; means for tracking the movement of said outside portion of said body as a function of said emissions; means to identify and map said inside portion of said body that is intended to be subjected to surgery; means to preprogram a treatment path adapted to be followed by treatment means; means to integrate said tracked movements with said preprogrammed cutting path to form a modified cutting path; and means to cause said treatment means to treat said inside portion of said body along said modified treatment path while substantially preventing said treatment means from departing from said modified treatment path to any substantial extent.