Key points from article :
Researchers develop a biodegradable nerve guide to help damaged nerves grow back.
It's a polymer tube filled with growth-promoting protein that can bridge damaged nerves.
No need for transplanting stem cells or a donor nerve.
Bridged a large, 2-inch gap between the nerve stump and its target muscle in monkeys.
Achieved 80% of fine motor control even with a 2-inch nerve gap in the forearm.
Awaiting Food and Drug Administration (FDA) approval for the first human clinical trial.
Research by University of Pittsburgh published in Science Translational Medicine.