In 1986, the Illinois courts created the Petrillo doctrine, which prohibited attorneys representing defendants in personal-injury actions from having ex parte discussions with a plaintiff’s treating physician.See Petrillo v. Syntex Laboratories, 148 Ill.App.3d 581 (1st Dist. 1986).In the typical personal-injury case, involving a plaintiff injured in an auto or construction accident, this created few problems, because physicians had little reason to be concerned that their testimony could lead to being named in a …