Nerve lesions that result from brachial plexus injuries are
categorized into supraclavicular and infraclavicular. Infraclavicular
involvement is the most common. One study noted
that when brachial plexus injuries are associated with blunt
trauma, including shoulder dislocations, other associated
injuries, including vascular and thoracic lesions, are frequently
involved, sl This mandates consideration of other
complications when a brachial plexus nerve injury is diagnosed.