A man who had been paralyzed from the waist down and had lost all
function in both his hands can move his fingers after doctors rewired
his nerves to bypass the damaged ones in a pioneering surgical
procedure, according to a case study published on Tuesday.
The 71-year-old man, who had become paralyzed after he was injured in
a car accident in 2008, still had limited arm, elbow and shoulder
movement, but because the C7 vertebrae in his spinal cord had been
crushed, the nerve circuits responsible for sending signals from the
brain to the muscles in his hands were severed and all control was lost.
However, the nearby nerves had not been injured in the accident and
surgeons were able to cut an undamaged nerve in the man’s elbow and
connect it to the damaged nerve responsible for activating muscles in
the hand responsible for grasping objects.
“The circuit [in the hand] is intact, but no longer connected to the
brain,” Surgeon Ida Fox, an assistant professor of plastic and
reconstructive surgery at Washington University, explained to the BBC.
“What we do is take that circuit and restore the connection to the
brain.”
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