PRP Therapy for Knee Osteoarthritis

Platelet-rich plasma therapy - often called PRP - is a treatment that uses your own blood to support healing in the knee. In this video I explain: how PRP works; what you can expect from treatment; and who it may benefit most. The process begins by taking a small blood sample from your arm, much like a routine blood test. The sample is placed in a centrifuge, which separates the blood into its components - producing a serum rich in growth factors; and natural healing elements. This concentrated serum is then injected into the knee joint under ultrasound guidance, to ensure accurate placement. The growth factors encourage a natural healing response within the joint, and the benefit can last for up to twelve months. It is also worth noting that platelet-rich plasma is not currently recommended by NICE for knee osteoarthritis, as the evidence base continues to develop. However, it is offered in private practice settings where individual clinical judgement, and patient preference, guide the treatment decision. It is also worth understanding that not all PRP systems produce the same concentration of growth factors. The method of preparation, and the specific system used can vary between clinics - so this is something your practitioner should explain to you. A standard course of PRP may involve three injections - spaced seven to fourteen days apart - to maintain high growth factor levels. However, newer concentrated systems can deliver a similar benefit in a single treatment - reducing the number of injections needed. PRP can also be combined with hyaluronic acid; and research supports the benefits of this combination approach. You get the lubrication and shock absorption from the hyaluronic acid; alongside the healing properties, that PRP provides to the joint. PRP may be especially suitable if you have tried hyaluronic acid before and want a longer-lasting result. It can also help people where the osteoarthritis involves a specific area of cartilage damage in the knee. PRP may not be suitable in all situations, including: where there is active infection, or certain blood disorders present. If you are taking anti-inflammatory medication, this may need to be paused before the procedure, which your practitioner will discuss with you. The important thing to understand about PRP is that it works with your body's own biology over time. You may not notice the full benefit for several weeks, but for many people the longer duration of effect makes that wait worthwhile. If you would like to discuss whether PRP therapy could be suitable for your knee, please get in touch. You can book a consultation through my website, and we can explore the right treatment plan for you.