Task: Answer Verification
Input (English): Question: Is leukocyte-poor platelet-rich plasma more effective than the conventional therapy with acetaminophen for the treatment of early knee osteoarthritis?
Answer: Treatment with LP-PRP injections resulted in a significantly better clinical outcome than did treatment with acetaminophen, with sustained lower EVA and WOMAC scores and improvement in quality-of-life (higher SF-12 score). Therapy with LP-PRP may positively modify the inflammatory joint environment by counteracting IL-1β action.
Output (English): yes