Brown Sequard Syndrome results from in injury to one half of the spinal cord, as seen in penetrating injuries.
The spinothalamic tract fibers cross the midline below the level of the lesion, resulting in contralateral loss of pain and temperature sensation. The posterior column and the corticospinal tracts carry vibration, position, light touch sensation, and motor function, which are lost from the ipsilateral side of the body. So, if the patient has a wound on the right side, the patient will feel it on the left side, because it is a hemisection lesion. There is loss of vibratory light touch and motor on the same side, while pain and temperature is lost on the opposite side.
Prognosis is usually good with a diagnosis of Brown Sequard Syndrome. Around 90% of the patients recover.
