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A brachial plexus injury (BPI), also known as brachial plexus lesion, is an injury to the brachial plexus, the network of nerves that conducts signals from the spinal cord to the shoulder, arm and hand. These nerves originate in the fifth, sixth, seventh and eighth cervical (C5–C8), and first thoracic (T1) spinal nerves, and innervate the ...
Flail limb can occur in cases of traumatic injury to the brachial plexus or in people with motor neuron diseases such as amyotrophic lateral sclerosis. [1] [2] Amputation of the affected limb and replacement with a prosthesis is one option for treatment. Amputation does not reduce pain experienced. [1] [3]
Brachial plexus block is a regional anesthesia technique that is sometimes employed as an alternative or as an adjunct to general anesthesia for surgery of the upper extremity. This technique involves the injection of local anesthetic agents in close proximity to the brachial plexus , temporarily blocking the sensation and ability to move the ...
The brachial plexus is a network of nerves (nerve plexus) formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1).This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit, it supplies afferent and efferent nerve fibers to the chest, shoulder, arm, forearm, and hand.
Based on the observation that phantom limb patients were much more likely to report paralyzed and painful phantoms if the actual limb had been paralyzed prior to amputation (for example, due to a brachial plexus avulsion), Ramachandran and Rogers-Ramachandran proposed the "learned paralysis" hypothesis of painful phantom limbs. [1]
The rhomboid muscles, trapezius, levator scapulae and latissimus dorsi are transected. The neurovascular bundle consisting of the axillary artery, axillary vein and brachial plexus is ligated and cut. The area of the chest left exposed is then normally covered with a split-thickness skin graft. [1]
Erb's palsy is a paralysis of the arm caused by injury to the upper group of the arm's main nerves, specifically the severing of the upper trunk C5–C6 nerves. These form part of the brachial plexus, comprising the ventral rami of spinal nerves C5–C8 and thoracic nerve T1.
One common cause of brachial plexus avulsions is when a baby's shoulders rotate in the birth canal during delivery, which causes the brachial plexus to stretch and tear. [20] It occurs in 1 to 2 out of every 1,000 births. [21] Shoulder trauma during motor vehicle collisions is another common cause of brachial plexus avulsions. [22]