Brown-Sequard Syndrome

Question 1

Causes

Answer 1

• Hemisection of the spinal cord (one side of SC)

- Stab wounds usually

Question 2

Usually only _____ lesions, True hemisections are ____.

Answer 2

• Partial

- Rare

Question 3

Clinical Features

Answer 3

• Losses on same side
• Looses on contralateral side
• Tactile sensations may or may not be intact as a result of the many crossed and uncrossed fibers

Question 4

Loss on same side

Answer 4

• Ipsilateral

- Loss of motor, proprioception, vibratory, light touch, pain, pressure and temperature

Question 5

Loss of motor function

Answer 5

• Variable due to 10-20% of corticospinal tract fibers don’t cross over the medulla.
• Controlls neck, shoulder, trunk mm’s and fractionation of movement

Question 6

Corticospinal

Answer 6

• Motor Efferent

Question 7

Spinothalamic

Answer 7

• Sensory Afferent

Question 8

Damage to the Spinothalamic Tracts causes loss of

Answer 8

• Proprioception and Vibratory sense

Question 9

Loss of sense of Pain and Temperature

Answer 9

• This loss begins several dermatome segments below the level of the lesion because the spinothalamic tract ascend 2-4 segmetns on the same side before crossing over

Question 10

Superficial Anteriolateral Column

Answer 10

• Light touch
• Pain
• Pressure
• Temperature

Question 11

Deep Dorsal Colummn

Answer 11

• Proprioception
• Kinesthesia
• Vibration