PRP: when it may help

PRP stands for platelet-rich plasma. A blood sample is centrifuged to prepare the material that is injected into the selected area. Platelets contain growth factors involved in healing processes.

It is neither cortisone nor stem cell therapy. Composition differs between preparation systems; the same name does not always mean the same product or protocol.

The aim is to improve pain and function, not to guarantee the restoration of worn cartilage. Studies have produced differing results and scientific recommendations are not uniform. Patient selection, the severity of the condition and the preparation matter.

A decision requires an explanation of this uncertainty, other available treatments, such as hyaluronic acid where considered, and the total cost. PRP is not a promise of avoiding surgery.

The Arthrex ACP Max system is a different PRP preparation system. It uses a larger blood draw and double centrifugation, with the ability to prepare plasma with a higher platelet concentration.

At the clinic, it may be selected individually for particular, more difficult cases, as well as for athletes or patients with high functional demands, when justified by clinical assessment. The choice is based on the specific condition, previous treatments and rehabilitation goals — not activity level alone.

This treatment has a higher cost than ACP. Suitability, alternatives and cost are discussed before treatment.

A higher platelet concentration does not in itself mean a better or guaranteed outcome. The same strict standards of safety, antisepsis and aseptic technique apply.

1. Symptoms, the examination and available imaging are assessed.
2. Blood is collected and the plasma is prepared using the Arthrex ACP system.
3. The injection is given under aseptic conditions. Ultrasound guidance is used where needed.
4. Instructions are provided for activity and follow-up.

Report all medicines and any health problems. Do not change anticoagulants, aspirin or other prescribed medication yourself; instructions should be agreed with your treating doctor.

Using your own blood does not eliminate risks. As well as local pain, an injection can cause bleeding, infection or injury to nearby tissues.

Fever together with rapidly increasing pain, redness or swelling after an injection requires immediate medical assessment. Severe deterioration or difficulty breathing require emergency help. In Greece, call 166 or go to a hospital Emergency Department.