The Muscular Dystrophy Association today announced that, with 92% of some 10,000 retail locations reporting, its 2010 Shamrocks Against Dystrophy fundraiser is the most successful in the event’s 27 year history.  As of today, the grass-roots initiative with a St. Patrick’s Day theme, has raised more than $20 million to advance MDA’s lifesaving mission. More Shamrocks…