Does PRP Treatment Work? Scientific Evidence and Realistic Expectations

Quick Answer

There are serious studies supporting PRP for mild-to-moderate knee osteoarthritis and some tendon/joint problems — but the outcome depends on correct patient selection, preparation method, and realistic expectations.

What Does the Scientific Evidence Say?

• Knee Osteoarthritis (mild-to-moderate): Meta-analyses show that intra-articular PRP yields better results in pain compared to hyaluronic acid and placebo, and the effect can last for 6-12 months.
• Tendon Problems (tennis elbow, patellar tendinopathy, plantar fasciitis): Some studies report longer-lasting benefits compared to corticosteroids, but the results are heterogeneous.
• Advanced Osteoarthritis: For patients close to needing a prosthesis, PRP alone will not be a permanent solution; it may be a delaying factor.

Why Doesn’t It Work the Same for Everyone?

Preparation method (platelet concentration, leukocyte content, activation or not), number of sessions, and the extent of joint damage alter the outcome. The person’s age, activity level, and expectations are also important.

Who Is It Suitable For?

• Early-to-moderate osteoarthritis or tendon wear
• Those seeking an alternative to surgery
• Those who haven’t achieved results with conservative methods (medication, physical therapy)
• Those without systemic diseases and not using blood thinners

Conclusion

PRP is not a miracle cure, but it is one of the primary non-surgical treatment options for a correctly selected patient. The decision should be made after MRI/orthopedic evaluation.