Orthopaedic Injections and Regenerative Treatments

PRP Treatment

PRP is plasma rich in growth factors, prepared from the patient's own blood and injected into the problem area. It is a supportive treatment for tendon problems and early arthritis.

2 min read Last updated: January 27, 2025 Medical content: Dr Ahmet Şadi Kılınç

PRP (platelet-rich plasma) is plasma prepared from the patient’s own blood and enriched with platelets. Platelets contain growth factors involved in tissue repair. PRP is given to deliver these factors in concentrated form to the problem area.

When is PRP used?

  • Early and moderate knee arthritis: To reduce pain and support function
  • Tendon problems: Tennis elbow, golfer’s elbow, Achilles tendinopathy, patellar tendinitis (jumper’s knee)
  • Rotator cuff tendinopathy and partial tears
  • Plantar fasciitis (heel pain)
  • Muscle and ligament injuries: As support in selected sports injuries

How well PRP works varies by condition. The strongest scientific support is for early knee arthritis and some tendon problems such as tennis elbow.

How is it given?

  1. A small amount of blood is taken from a vein in the arm.
  2. The blood is spun in special tubes in a centrifuge to separate the platelet-rich plasma.
  3. The PRP is injected into the problem area, under ultrasound guidance when needed.

The procedure takes about 20-30 minutes in the clinic. Because your own blood is used, the risk of allergy is very low. Depending on the treatment plan, several injections may be given a few weeks apart.

After the injection

  • Mild pain and swelling at the site for 1-3 days is possible.
  • Straining activities are avoided in the first days.
  • You may be advised to avoid anti-inflammatory painkillers for a while.
  • The effect may take a few weeks to appear.
  • Results are better when combined with exercise and physiotherapy.

Who is it not suitable for?

PRP may not be suitable with active infection, some blood disorders, a low platelet count, active cancer treatment or blood-thinning medication. An assessment is done beforehand.

PRP versus steroids

Steroid injections suppress inflammation quickly and can reduce pain in the short term, but the effect is usually temporary and repeated injections can weaken tendon and cartilage. PRP works more slowly but may last longer, especially in some tendon problems. Which method suits you depends on the type and stage of the problem.

Before the injection

In the days before, you may be advised to avoid anti-inflammatory painkillers, drink plenty of water and have a light breakfast on the day. The situation of patients on blood thinners is assessed beforehand.

Frequently asked questions

Does PRP regrow cartilage?

PRP does not regrow lost cartilage. The aim is to improve the joint environment, reduce pain and support function.

How long does the effect last?

It varies by person and condition. In some patients the effect lasts for months, and the treatment can be repeated if needed.

Is PRP painful?

There may be mild discomfort during the blood draw and injection. Mild pain for a few days afterwards is normal.

How many PRP sessions are needed?

It depends on the condition. For knee arthritis, several injections a few weeks apart are common, while a single injection may be enough for some tendon problems.

Can I exercise after PRP?

Avoid straining activities for the first few days. Light exercise then starts and load is increased gradually.

The information on this page is general and does not replace an examination. An examination is needed to decide which treatment suits you.