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Podcast Episode

Can Ultrasound Treat Arthritis Without Injections? | George Lewis, PhD

The Joint Replacement Podcast··11 September 2026·34 min

About this episode

Disclosure: Dr. Matthew Sloan serves as a paid physician consultant and key opinion leader for ZetrOZ Systems, manufacturer of SAM ultrasound technology. Can sound waves actually help treat arthritis?Dr. Matthew Sloan is joined by George Lewis, PhD, CEO of ZetrOZ Systems, to discuss Sustained Acoustic Medicine (SAM) and the evolving role of therapeutic ultrasound in treating knee arthritis and musculoskeletal pain.They break down how therapeutic ultrasound differs from the ultrasound used for medical imaging, what ultrasound may be doing at the tissue level, and why delivering treatment for several hours at home is fundamentally different from the short ultrasound sessions traditionally used in physical therapy.The conversation explores who may benefit most from SAM, including patients with mild to moderate osteoarthritis, whether it has a role in bone-on-bone arthritis, and an important distinction between preserving a joint and actually regrowing cartilage.They also compare ultrasound with cortisone injections, hyaluronic acid, PRP, TENS, laser, red light, and other nonsurgical treatments; discuss its use in professional athletics; review cost and insurance coverage; and address potential risks and contraindications.Finally, Dr. Lewis shares the story behind developing a wearable therapeutic ultrasound device and his vision for where nonsurgical arthritis treatment may be headed.If you have knee arthritis and are looking for options beyond medications, injections, or surgery, this episode provides a detailed look at one of the technologies trying to fill that gap. #wearableultrasound #medtech #innovation #ultrasoundtech #kneeoa #arthritispain #painrelief