Nerves are structures which connect hand to the brain. They provides sensation and control the movements of the muscles. When the nerves are cut, a person may lose sensation to a certain part of the hand. Or function of a certain muscles may be lost depending on the location of the injury. The nerves are extremely delicate structures. They have to be repaired very early for optimum recovery. With passage of time, the quality of recovery gets poorer and sub-optimal. The repair is done under magnification to match the cut fibers. The repair material is barely visible to naked eyes and measured in microns or repaired with a special glue. The repair is done without any tension at the repair site. With passage of time, the nerve retracts. This means an early repair is the good repair. If the injury is present for quite some time, the nerve will retract. In such a scenario, the gap in the nerve is bridged and grafted with another spare nerve harvested from some other part of the body.
Fall of a glass piece on the forearm of a six years old child. The site of profuse bleeding and shrieking of the child raised an alarm in the family and the neighbourhood. Sharp injury is generally suggestive of nerve injury, hence wound was explored. Sure enough, the Ulnar nerve was found severed.
The Ulnar nerve repaired under microscope.