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Dr. Charles Mok treated 300 people with severe knee osteoarthritis using PRF/PRP injections from two blood tubes. At three years, about 80% of grade 3-4 patients no longer needed surgery. Most saw at least 50% improvement by two months.
Questions this video answers
About 300 people.
Two tubes of blood to make a PRF/PRP combination.
50% improvement (if not achieved, patients were advised to proceed to surgery).
Patients with >50% but <80% improvement were offered a repeat injection at month six.
>80% improvement (patients were asked to return when knee pain recurred).










