Nerve compression, frequently from entrapment at specific anatomic locations, is a common clinical entity, especially in patients with predisposing occupations or with certain medical disorders. It should be pointed out that a nerve can be compressed at more than one level. Early recognition and treatment are the most effective means of preventing long-lasting disability, since, despite the capacity for regeneration bestowed on the peripheral nervous system, functions lost as a result of denervation are never fully restored.