Chronic knee pain is a common condition, sometimes due to cartilage loss and arthritis, sometimes due to sports injuries like meniscus or ACL tears. Some of these patients have had prior knee surgery for injuries. Choices in the past have included pills, surgery, short term effective steroid shots, or just suffering. Since PRP (Platelet Rich Plasma) and stem cell techniques have been perfected other options are available. PRP is inexpensive and often very helpful long term for knee pain, even when multiple knee problems are present. The video shows a very satisfied patient with good pain relief after just one injection. He was so satisfied he volunteered to do this video!