Renervate

Subsequently, studies by Lugaro (104), Ramón y Cajal (161), Van Harrelveld (202), Edds (49), and Hoffman (72) provided anatomic and physiologic evidence that intact fibers from partially cut peripheral nerves can generate axon sprouts that renervate muscles.

Initially, surviving neurones compensate for this by producing axon branches to renervate denervated muscle fibres.

In addition to that, Dr. Shumway would tell you that hearts tend to renervate after six months.