Medical marvel: Paralyzed man intentionally moves legs, stands with help of spine-stimulating device!

(Image for representational purposes only)

New Delhi: A man with paralyzed legs has been able to move his limbs with the help of scientists in the United States.

Using electrical stimulation on his spinal cord and intense physical therapy, the scientists were also able to him stand and make step-like movements.

This is the first time in medical science that a patient has been able to intentionally control previously paralyzed functions within the first two weeks of stimulation, researchers said.

The results offer evidence that a combination of this technology and rehabilitation may help patients with spinal cord injuries regain control over previously paralyzed movements, such as step-like actions, balance control and standing.

"We're really excited, because our results went beyond our expectations," said Kendall Lee, director of Mayo Clinic's Neural Engineering Laboratory in the US.

The patient injured his spinal cord at the sixth thoracic vertebrae in the middle of his back three years ago.

Diagnosed with a motor complete spinal cord injury, the 26-year-old could not move or feel anything below his mid-torso.

The study began with the patient going through 22 weeks of physical therapy. He had three training sessions a week to prepare his muscles for attempting tasks during spinal cord stimulation.

He was tested for changes regularly. Some results led researchers to characterize his injury further as incomplete, suggesting dormant connections across his injury may remain.

Following physical therapy, he underwent surgery to implant an electrode in the epidural space near the spinal cord below the injured area.

The electrode is connected to a computer-controlled device under the skin in the patient's abdomen. This device sends electrical current to the spinal cord, enabling the patient to create movement.

After a three-week recovery period from surgery, the patient resumed physical therapy with stimulation settings adjusted to enable movements.

In the first two weeks, he intentionally was able to control his muscles while lying on his side, resulting in leg movements.

He was also able to make step-like motions while lying on his side and standing with partial support as well as stand independently using his arms on support bars for balance.

Intentional, or volitional, movement means the patient's brain is sending a signal to motor neurons in his spinal cord to move his legs purposefully.

"This has really set the tone for our post-surgical rehabilitation - trying to use that function the patient recovered to drive even more return of abilities," said Kristin Zhao, director of Mayo Clinic's Assistive and Restorative Technology Laboratory.

The data suggest that people with incomplete spinal cord injuries may be candidates for epidural stimulation therapy.

The research was published in the journal Mayo Clinic Proceedings.

(With PTI inputs)