Quadriceps and patellar tendinitis are prevalent knee conditions in athletes primarily due to overuse injuries to the extensor mechanism of the knee. These conditions commonly arise during activities involving repetitive mechanical stress and knee extension. First-line treatment typically involves physical therapy and medical treatment such as nonsteroidal anti-inflammatory drugs (NSAIDs). Refractory cases may be managed with local platelet-rich plasma or corticosteroid injections to relieve symptoms and enhance function. Surgical intervention is generally reserved for severe tendinopathy that fails to respond to both conservative measures and injectable therapies (1). In 2013, Okuno et al (2) reported the preliminary outcomes of transcatheter arterial microembolization (TAME) in a cohort of 7 patients with refractory tendinopathy, marking the initial introduction of this therapeutic approach. Since then, multiple studies have further investigated the safety and effectiveness of TAME for tendinopathy affecting both upper and lower extremities (3). This report presents 2 cases in which genicular arterial embolization (GAE) effectively alleviated knee pain associated with abnormal hypervascularity in the quadriceps and patellar tendons. The intervention with GAE was approved by the institutional review board (IRB) of National Cheng Kung University Hospital (approval protocol number A-BR-109-051).
