1. Brown sequard syndrome occurs when there is damage to one half (left or right) of the spinal cord (Hemisection of the spinal cord)
2. Causes- Trauma, tumor, ischemia, tuberculosis etc.
3 Affected Tracts:
1. Corticospinal tract: Responsible for voluntary motor control, affected on the same side (ipsilateral) as the lesion.
2. Dorsal columns: Carry proprioceptive and fine touch sensations, affected on the same side (ipsilateral) as the lesion.
3. Spinothalamic tract: Carries pain and temperature sensations, affected on the opposite side (contralateral) of the lesion.
4. Symptoms-
a. Weakness or paralysis on one side of the body - Ipsilateral / same side to the lesion
b. Loss of proprioceptive sensation - Ipsilateral / same side to the lesion
c. Loss of pain and temperature sensation on the opposite side of the body - Contralateral / opposite side to the lesion
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Contralateral (opposite side) loss |
Ipsilateral (same side) loss |
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Loss of pain and temperature sensation below the level of the injury. |
1. Motor Function: Loss of motor function (paralysis or paresis) below the level of the injury. 2. Loss of proprioception (sense of body position) and fine touch, vibration |