Paraplegia's an impairment in motor and/or sensory function of the lower extremities. It's usually the result of spinal cord injury or a congenital condition such as spina bifida which affects the neural elements of the spinal canal. The area of the spinal canal which's affected in paraplegia's either the thoracic, lumbar, or sacral regions. If the arms are also affected by paralysis, tetraplegia's the proper terminology. Causes The causes range from trauma (acute spinal cord injury: transsec… (More on Paraplegia)