If you’re considering PRP for knee osteoarthritis, two of the biggest questions are how many injections are needed and how long the results may last. Recent research provides useful insight into both, with many clinical trials using a short course of 2–3 injections rather than a single treatment.
Our latest evidence update looks at the durability of PRP, how platelet concentration may influence the length of benefit, and when a repeat course may be considered for patients who respond well.
