Walk Again: A new hope for paralysis recovery

More than 15 million people worldwide live with spinal cord injuries, many of them facing permanent paralysis. But a groundbreaking technology emerging from China may be changing that reality.

In the city of Hangzhou, doctors and engineers from the Second Affiliated Hospital of Zhejiang University School of Medicine and Zhejiang University's biomedical engineering team are pioneering a new treatment known as a closed-loop spinal cord neural interface.

The system uses epidural electrical stimulation (EES) and advanced algorithms to help restore communication between the brain and the body. Electrodes placed along the spinal cord deliver carefully controlled electrical signals that activate muscles needed for standing and walking. Wearable sensors and mobile apps collect real-time data, allowing doctors and even patients themselves to fine-tune stimulation during rehabilitation.

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Razor's Reya El-Salahi went inside the operating room witnessing one of these pioneering procedures. She followed Mr. Fang, a patient paralyzed for more than two years, as surgeons implant the electrodes that could allow him to walk again.

Alongside his story are other patients whose lives have already begun to change, including Jiang, who suffered a devastating fall, and Jin, a construction worker who is now walking hundreds of meters every day after surgery.

This episode explores a new frontier in medicine where neuroscience, engineering, and artificial intelligence merge with the human body. Could this technology reshape the future of paralysis treatment?