When an injury is sustained to the nerves, it can stop signals to and from the brain causing the muscles not to work properly and a loss of feeling in the injured area. To repair the injury, surgery is performed to remove the injured part of the nerve and then reconnect the ends of the nerves.
Nerves are part of the “electrical wiring” system that sends signals between the brain and rest of the body telling the muscles to move and when to feel pain, pressure and temperature. The nerves are protected by a ring of tissue called axons. The nerves can be injured, cutting both the nerve and axon.
“Oftentimes when lacerations are sustained to the fingers, wrist and arm, whether it be just a small cut or a more traumatic mechanism, nerves and other tendons can be lacerated and are injured in that situation,” says Michael D. Riggenbach, M.D.
A nerve injury can cause:
- Loss of muscle control