Research
Cardiovascular and Interventional Radiology, 2015
Design: Prospective case series, mild-to-moderate knee OA
Key findings: First major series describing transcatheter embolization of abnormal neovessels. Reported significant, sustained reductions in WOMAC pain scores through long-term follow-up, with no major adverse events.
Journal of Vascular and Interventional Radiology, 2020
Design: Prospective, multicenter, moderate-to-severe knee pain resistant to conservative therapy
Key findings: Significant reductions in pain (VAS) and WOMAC scores at 1, 3, and 6 months. Adverse events were minor, most commonly transient skin discoloration.
Cardiovascular and Interventional Radiology, 2021
Design: Prospective, single-center UK trial with microsphere embolization
Key findings: Clinically meaningful improvement in knee pain and function (KOOS) at 12 months; MRI showed reduced synovitis in a subset. Supported safety and feasibility.
Journal of Vascular and Interventional Radiology, 2021
Design: Prospective trial of GAE for symptomatic knee OA
Key findings: Durable improvement in pain (VAS) and WOMAC scores at 12 months, with no serious adverse events.
Multiple publications, 2022–2025
Design: Randomized, blinded, sham-controlled
Key findings: Randomized trials comparing GAE with a sham procedure have been published and are ongoing. Several have reported greater pain improvement with GAE than sham, while results across trials continue to be evaluated — an important step in confirming the treatment effect beyond placebo.
Various journals, 2021–2025
Design: Pooled analyses of GAE studies
Key findings: Pooled data consistently show meaningful reductions in pain and WOMAC scores after GAE with a low rate of serious complications. Most reported adverse events are minor and self-limited.
Summaries are simplified for patient education. Please consult the original publications and discuss the evidence with your physician.
Take the 2-minute WOMAC-based candidacy assessment.