Axillary nerve dysfunction is a general term that refers to any type of dysfunction of the axillary nerve. The axillary nerve is a branch of the brachial plexus that innervates the deltoid and teres minor muscles. This nerve can be injured or damaged in a variety of ways - penetrating injury such as knife or gunshot wounds, surgical trauma, stretch injury (common after motor cycle accidents), and various metabolic or rheumatic conditions that may cause focal disruption of the blood supply to the nerve. The exact cause of the axillary nerve dusfunction cannot be identified with Electromyography, but the way that the nerve has responded to the injury, and whether or not the nerve is healing, can.
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