What is PRP therapy
PRP (platelet-rich plasma) is plasma with a high platelet concentration made from your own blood. The blood is centrifuged, the platelet-rich layer is separated and injected into a joint, tendon or ligament. In Germany it is also called Eigenbluttherapie or ACP.
Platelets release growth factors (PDGF, TGF-β, VEGF and others) that reduce inflammation and influence healing. PRP does not regrow cartilage: the aim is less pain and better function for several months up to a year.
Products differ in platelet concentration and white-cell content. Leukocyte-poor PRP is used more often for joints; for tendons the physician decides.
PRP at a glance
- Material: your own blood, 15–60 ml
- Procedure time: about 45–60 minutes
- Course: usually 1–3 injections 2–4 weeks apart
- Onset: 2–6 weeks
- Duration: in studies up to 6–12 months, individual
- Guide price: about €500–800 per injection
Which conditions PRP is used for
The benefit of PRP is not equally well studied for every diagnosis. The table shows the main indications and what research says.
| Diagnosis | What studies show | Comment |
|---|---|---|
| Knee osteoarthritis stages I–III | In a meta-analysis of 18 trials better than hyaluronic acid at 6–12 months; in the RESTORE trial no better than placebo | Most common indication; results vary |
| Tennis elbow | Better than cortisone at one year | A good alternative to repeated cortisone shots |
| Plantar fasciitis | Comparable to or better than cortisone in the longer term | Combined with stretching and insoles |
| Patellar tendinopathy, shoulder | Mixed evidence | Decided on MRI/ultrasound and after failed exercise therapy |
| Achilles tendon | No better than placebo in a JAMA trial | Eccentric exercises remain the basis |
| Hip osteoarthritis | Comparable to hyaluronic acid | Only under ultrasound guidance |
PRP does not help with a complete tendon rupture, severe stage IV osteoarthritis with deformity or a mechanically locked joint — other methods are discussed then.
How the procedure works
MRI review
A clinic physician reviews your images and decides whether PRP is suitable; the preliminary opinion follows within 1–3 business days of receiving the MRI.
Blood draw
15–60 ml of blood is taken from a vein — like a normal blood test.
Centrifugation
The blood is spun for 10–20 minutes to obtain the platelet concentrate.
Ultrasound-guided injection
After local anaesthesia, PRP is injected precisely into the injured area under ultrasound control.
Home the same day
After 20–30 minutes of observation you can leave. A trip to Munich of 2–3 days is usually enough.
Recovery after PRP
- Pain and swelling at the injection site for 1–2 days are an expected reaction; cold and rest help.
- Anti-inflammatory drugs (ibuprofen, diclofenac) are usually avoided for a few days before and 1–2 weeks after the procedure. For pain relief, physicians usually advise paracetamol.
- You can walk straight away. Heavy loading of the joint or tendon is usually resumed after 1–2 weeks; running and sport follow the physician’s plan.
- Exercise therapy is an essential part of treatment: PRP works better together with exercise.
- The result is assessed after 6–12 weeks. If a course brings no effect, repeating it usually makes little sense.
Who PRP is not suitable for and possible risks
Contraindications
Active infection, active cancer, low platelet count and clotting disorders, anaemia, pregnancy, a cortisone injection into the same area within the last 4–6 weeks.
Possible risks
Pain and swelling for 1–3 days, bruising at the blood-draw site. Rarely infection, which is why the procedure is performed under sterile conditions. There is no allergy to your own plasma.
When other methods are needed
A complete tendon or ligament rupture, a locked joint or severe stage IV osteoarthritis — surgery or joint replacement is usually discussed.
PRP and other methods
| Method | Main difference from PRP | More |
|---|---|---|
| Cortisone | Relieves pain faster, but the effect is shorter and frequent shots are harmful | Cortisone injections |
| Hyaluronic acid | Improves the properties of joint fluid; effect up to 6 months | Hyaluronic acid |
| CGF | Growth-factor concentrate with a fibrin matrix | CGF therapy |
| Cell-based methods (MFAT, BMAC) | Use cells from fat tissue or bone marrow; for more advanced changes | Stem cells |
How much does PRP cost in Germany
In Germany PRP is usually paid by the patient: statutory insurers do not cover it, private insurers sometimes do at their discretion. A guide price is €500–800 per injection, depending on the preparation system, the area and ultrasound guidance; a course of 3 injections costs roughly €1,500–2,400.
The clinic states the exact cost after reviewing your MRI; we pass it on in advance together with the travel plan. More on treatment cost.
Prices are approximate. Each clinic sets its own conditions and price: we send your request to several clinics and forward their offers so you can compare.
Scientific evidence
Studies with positive and neutral PRP results:
- Belk JW et al. Platelet-Rich Plasma Versus Hyaluronic Acid for Knee Osteoarthritis: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Am J Sports Med, 2021.
- Bennell KL et al. Effect of Intra-articular Platelet-Rich Plasma vs Placebo Injection on Pain and Medial Tibial Cartilage Volume in Patients With Knee Osteoarthritis: The RESTORE Randomized Clinical Trial. JAMA, 2021.
- Peerbooms JC et al. Positive effect of an autologous platelet concentrate in lateral epicondylitis in a double-blind randomized controlled trial: platelet-rich plasma versus corticosteroid injection with a 1-year follow-up. Am J Sports Med, 2010.
- de Vos RJ et al. Platelet-rich plasma injection for chronic Achilles tendinopathy: a randomized controlled trial. JAMA, 2010.
Frequently asked questions about PRP therapy
Find out whether PRP is right for you
Send your MRI and describe your diagnosis. The coordinator replies within 24 hours; a clinic physician gives a preliminary opinion in 1–3 business days.
Send MRI
