Platelet Rich Plasma (PRP) injections

The procedure is normally used as a last resort after patients have tried Physiotherapy, and anti-inflammatory injections, and are considering surgery. The idea behind them is that they contain Growth Factors, which are chemicals which signal the body to initiate the body’s natural healing process, something that is slow or non-existent when an injury becomes chronic. PRP injections are quite a simple procedure, and real side effects are rare, so they are becoming more popular. They are however, only suitable for adults and those who are considering surgery or repeated injections. 

The injections involve taking a small quantity of blood from the patient, spinning it quickly in a centrifuge to separate the blood. The portion containing the Platelet Rich plasma is drawn off into a syringe, and this is then injected into the affected area once it has been sterilised and anaesthetised. The patient will then be given crutches and possibly a brace, and be advised with regards to gentle stretches and strengthening of the appropriate muscle. 

No sports are allowed for the first three months, and then a graded return is allowed, so it is not a quick fix by any means. There is very little evidence as to how effective they are at present, as they have not been around for very long. Studies on animals have been positive, but human studies are in their early stages.  They are also not cheap. The cost of the injections is anywhere between about £400 and £1500 depending on where they are done. Although, side effects are rare, some patients have actually had an increase in pain and inflammation after the procedure. 

Whilst there is some evidence that PRP injections might be useful for some patients with chronic problems, and will be popular with people who feel they have nothing to lose, they are in no way guaranteed to help everyone.