RecruitingClinical trialCreation of a Prospective Data Collecting Registry for Genicular Artery Embolization for ArthritisThe goal of this study is to create a prospective registry (\<100 patients) to show the effectiveness of the genicular artery embolization procedure overtime in reducing bilateral or unilateral osteoarthritic knee pain as measured by Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score.