[Atrophic sternum nonunion-Case report based on the nonunion scoring system].

Nonunions after median sternotomy are rare and usually respond well to surgical treatment. Recalcitrant nonunions despite surgical treatment require a comprehensive mechanical and biological treatment strategy to achieve an adequate functional result for the patient. We demonstrate the case of a 4-year recalcitrant atrophic nonunion. Through a surgical approach guided by the criteria of the nonunion scoring system (NUSS) successful healing was achieved. Our strategy as well as the treatment course are presented.