There is a huge group of knee osteoarthritis patients in whom conservative therapy fails. Yet, many of these patients are not candidates for joint replacement. If proven to have long-term benefits, geniculate artery embolization—a minimally invasive procedure performed in about an hour, under local anaesthesia—could help fill the gaps in the treatment paradigm and have a profound effect on the quality of life of these patients, Mark Little (Reading, UK) tells Interventional News at the first Embolotherapy (ET) conference in Valencia, Spain.