For millions of people, knee pain is a constant obstacle. From walking downstairs to getting out of the car, even simple tasks become burdensome.
Traditional treatments offer limited relief and often bring unwanted side effects.
But researchers at the University of Texas at El Paso, in collaboration with Harvard Medical School and Boston University, are taking a different approach.
Instead of focusing on the knee itself, they’re targeting something else.
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Sending signals, not pills
The treatment is called transcutaneous auricular vagus nerve stimulation — or tVNS.
It works by placing a small device on the outer ear that sends electrical impulses to the vagus nerve.
In a pilot study, 30 people with osteoarthritis-related knee pain received one hour of this ear-based therapy.
And the outcome was promising: more than one-third reported a noticeable drop in pain.
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What makes this approach different is that it doesn’t treat the knee directly.
Instead, it tries to rebalance the nervous system by calming down the body’s stress responses and boosting its natural recovery mode.
Researchers believe that people with chronic knee pain often have an overactive stress system and an underactive “rest and digest” response.
By stimulating the vagus nerve, the therapy may help correct this imbalance.
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Not yet in your doctor’s office
This isn’t a treatment you can get at the clinic just yet.
While tVNS is already FDA-approved for conditions like epilepsy and depression, this is the first U.S. clinical trial to test its effect on knee pain.
The next step is a large-scale randomized controlled trial, where some patients will receive the actual treatment and others will get a placebo.
Only then can researchers determine how effective the therapy truly is.
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This article is based on information from Newswise.com.
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