A state appeals panel on Friday upheld the record-breaking $21.4 million injury award a railroad conductor won at trial after his heel was irreparably damaged at a rail yard.The 1st District Appellate Court rejected all of Norfolk Southern Railway Co.’s attempts to either vacate or reduce the injury award that was granted to plaintiff Michael Parsons.Parsons’ November 2015 award is the largest reported verdict or settlement for a heel-related injury in Cook County, according to John L. Kirkton of the Jury …