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Review Question - QID 217801

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QID 217801 (Type "217801" in App Search)
A 64-year-old patient comes to your clinic with knee osteoarthritis (OA). She has not yet pursued nonoperative management. According to the American Academy of Orthopaedic Surgeons (AAOS) Guidelines for the Treatment of Knee OA, which of the following has the least evidence supporting its use?