He might never regain the full use of his left arm.
After 18 months he had regained full use of the right hand.
He regained full use of his right hand just this summer.
He spent years in medical treatment and never regained use of the arm.
"They tell me she's never going to regain full use of her legs again."
This activity helped him regain the use of his left arm and hand.
I'm not willing to have surgery to regain the use of my hands.
He spent four years there, finally regaining the use of his hands and arms.
"My physician says it will be some weeks before you regain full use of the hand."
It was not clear whether he would fully regain the use of his legs.