US doctors "rewire" paralyzed hand

This is an exciting medical development:

In a pioneering operation, US doctors took healthy nerves from the man and used them to bridge the damaged wiring that stopped signals getting from the man's brain to his hands.

Surgeons at Washington University's school of medicine said the operation may prove to be a breakthrough for some patients paralyzed by spinal cord injuries.

The 71-year-old broke his neck in a car crash in 2008 that left him unable to walk. Though he could still move his arms, he had lost the ability to grasp or hold things in either hand.