New Evidence for Drug-Free Pain Relief Following Total Knee Replacement A newly published clinical study in The Journal of Arthroplasty has found that NeuroCuple® technology significantly reduced pain and opioid use following total knee replacement surgery. Total knee replacement is one of the most common orthopedic procedures performed worldwide. While the surgery can restore mobility and improve quality of life, many patients experience substantial postoperative pain that often requires opioid medications for relief. Researchers conducted a randomized, placebo-controlled clinical study to evaluate whether NeuroCuple® technology could help reduce pain and decrease reliance on opioid medications during the critical early recovery period. What Did the Study Find? The study found that patients using the active NeuroCuple® device experienced: Lower postoperative pain...
New Evidence for Drug-Free Pain Relief Following Total Knee Replacement
A newly published clinical study in The Journal of Arthroplasty has found that NeuroCuple® technology significantly reduced pain and opioid use following total knee replacement surgery.
Total knee replacement is one of the most common orthopedic procedures performed worldwide. While the surgery can restore mobility and improve quality of life, many patients experience substantial postoperative pain that often requires opioid medications for relief.
Researchers conducted a randomized, placebo-controlled clinical study to evaluate whether NeuroCuple® technology could help reduce pain and decrease reliance on opioid medications during the critical early recovery period.
What Did the Study Find?
The study found that patients using the active NeuroCuple® device experienced:
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Lower postoperative pain levels
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Reduced opioid consumption
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Improved early recovery outcomes compared with placebo controls
Importantly, NeuroCuple® achieved these benefits without drugs, batteries, electrical stimulation, or invasive procedures.
The device works passively and can be worn comfortably during recovery while allowing patients to continue normal rehabilitation activities.
Why Is This Important?
The medical community continues to search for safer ways to manage pain after surgery.
Although opioid medications can be effective, they are associated with side effects such as:
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Nausea
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Constipation
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Drowsiness
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Delayed recovery
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Risk of dependence
Finding non-drug options that can reduce the need for opioids is a major goal in modern postoperative care.
The results of this study suggest that NeuroCuple® technology may provide healthcare providers with an additional tool to help patients manage pain while reducing reliance on opioid medications.
The significance of these findings is further strengthened by the fact that the research was funded by the National Institutes of Health, which supports rigorous scientific investigation into innovative healthcare solutions that may improve patient outcomes and reduce reliance on opioids.
Building on Previous Research
This latest publication adds to a growing body of clinical evidence supporting NeuroCuple® technology.
Previous studies have reported benefits in patients recovering from orthopedic procedures, including reductions in pain and opioid use following joint replacement surgery.
The newly published randomized placebo-controlled study strengthens that evidence by demonstrating measurable benefits in a controlled clinical setting.
About NeuroCuple®
NeuroCuple® is a patented, drug-free, reusable technology developed by inventor Rhett Spencer and the team at nCAP Medical.
The technology is designed to interact passively with the body's natural bioelectrical environment without delivering electricity, heat, chemicals, or medication.
NeuroCuple® devices are:
Today, NeuroCuple® technology has been used by more than two million people worldwide seeking a non-pharmaceutical approach to pain management.
Looking Ahead
As healthcare systems continue to seek alternatives to opioid-based pain management, studies like this help expand the scientific understanding of non-drug pain relief technologies.
The publication of this study in The Journal of Arthroplasty represents another important milestone in the ongoing evaluation of NeuroCuple® technology for postoperative recovery and pain management.
Read the Full Study
The complete peer-reviewed publication is available through
The Journal of Arthroplasty:
https://doi.org/10.1016/j.arth.2026.04.083
This article is intended for informational purposes only and does not constitute medical advice. Patients should consult their healthcare provider regarding treatment decisions.
