Extrastent Plaque Modification With Knuckle Wire for Resistant Stent Underexpansion

Stent under expansion is one of the reasons compromising the outcomes of percutaneous coronary interventions. The most common cause of the stent under expansion is calcium deposited in the atherosclerotic plaque. Adequate plaque modification is the paramount before the placement of a stent, as the options to handle under expanded stent are limited and less effective. In this case report, we explore the usage of knuckle wire for the extrastent plaque modification, after being failed with routine methods of handling stent under expansion.