Patellar Tendinopathy (Jumper's Knee): How Physiotherapy, Bracing, Acupuncture and Hyaluronic Acid Injections Can Help Patellar tendinopathy, commonly known as Jumper's Knee, is one of the most common causes of pain at the front of the knee. It affects active individuals, runners, footballers, gym-goers and people whose jobs involve frequent kneeling or repetitive squatting. Although traditionally called patellar tendonitis, research now shows that many long-standing cases in