Brachial Plexus Department of Surgery Section of Neurosurgery Brachial Plexus Brachial Plexus injuries in infants and children are not uncommon. An infant with a Brachial Plexus injury will have a weak arm, the baby may be unable to raise the arm, or may have difficulty moving fingers. Large babies, who are born as a result of a difficult delivery, are more likely to have these problems. Associated fractures of bones, such as the clavicle, can also occur.
Many infants recover complete or near complete function with occupational therapy.
If the infant remains weak, however, after about 4 months of therapy he or she should be seen by a doctor who specializes in the care of the Brachial Plexus. The Brachial Plexus is a web of nerves which come from the cervical spine merged together at the base of the neck and extend out through the shoulder into the arm. These nerves are responsible for muscle function of the arm including the ability to raise the arm above the head, bring the hand to the mouth, and move the fingers. In addition, these nerves also provide information to the brain about sensation in the skin and position of the arm. Infants who fail to improve with therapy alone may be candidates for surgical intervention.