Brachial plexus injury (BPI) is a severe peripheral nerve injury affecting upper extremities, causing functional damage and physical disability. The most common cause of adult BPI is a traffic accident, and the incidence has steadily increasedCited by: 4. Aug 16, · Brachial plexus neuropathy (BPN) occurs when nerves in your upper shoulder area become damaged. This can cause severe pain in your shoulders or arms. BPN may also limit movement and cause decreased.
Brachial neuritis occurs when nerves belonging to the brachial plexus become damaged or irritated. The brachial plexus is a network of nerves that carry nerve signals from the spinal cord to .