In the 1840s Dr. Charles-Edouard Brown-Sequard had first described what the world later came to known as Brown Sequard syndrome. It is the lesion on one half of the spinal cord, like for example, the lateral injury of your cervical cord region.
Brown Sequard syndrome is a rare syndrome which comprises the ipsilateral hemiplegia with the contralateral pain and also temperature sensation deficits, which is due to the crossing of your fibres of the spinothalamic tract. This hemisection syndrome happens to also occur with additional symptoms and signs. A patient would experience interruption of the lateral corticospinal tracts, lateral spinothalamic tract, and at times in the posterior columns which clinically cause a spastic weak leg that leaves brisk reflexes and a strong leg with loss of pain and temperature sensation. 
The Prognosis of Brown Sequard Syndrome
It has been found that prognosis of motor recovery in Brown-Sequard Syndrome is good, and one half to two thirds of the 1 year motor recovery occurs within the first 1-2 months after the injury. After this period of time, the recovery happens to slow down and then continues again for three to six months.
It has been documented to progress for up to 2 years after the injury.
Here is the pattern of recovery for patient suffering from Brown Sequard Syndrome:
• The ipsilateral proximal extensor muscles will recover before the ipsilateral distal flexors
• You will find that you are recovering from weakness the extremity along with sensory loss recovery that occurs in the opposite extremity
• Your voluntary motor strength and the functional gait will recover within one to six months
The long term complication associated with this disease happens to be similar to those which are associated with ageing. It has been found that your lower extremity problems which are related to ambulation could increase, but this has not been documented as of yet.
The prognosis of Brown Sequard Syndrome suggests that aetiology could have a bearing on it, and interestingly, early treatment with high dose of steroids have shown benefit in some cases. But then again, one must be careful, and should seek an expert advice.
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