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| ==Background==
| | #REDIRECT[[Spinal cord injury]] |
| *Complete lesion means absence of sensory and motor function below level of injury
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| **May be confused w/ spinal shock
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| *Anatomy
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| **Doral column
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| ***Proprioception, vibration and touch
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| ***Decussation at medulla
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| **Lat corticospinal
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| ***Voluntary motor
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| ****Upper extremity fibers more central, lower extremity fibers more lateral
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| ***Decussation at medulla
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| **Ant spinothalamic
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| ***Pain, temp, light touch
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| ***Decussates one level above entry point to spinal cord
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| ==Spinal Cord Syndromes==
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| ===Complete Transection===
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| *Higher lesions a/w spinal shock and autonomic dysfunction
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| *Sacral sparing (perianal sens, rectal tone, or toe flexor) excludes complete transection
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| ===Anterior Cord===
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| *Etiology
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| **Direct anterior cord compression
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| **Flexion of cervical spine
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| **Thrombosis of anterior spinal artery
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| *Symptoms
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| **Complete paralysis below the lesion with loss of pain and temperature sensation
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| **Preservation of proprioception and vibratory function
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| *Prognosis poor
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| ===Central Cord===
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| *Etiology
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| **Hyperextension injuries
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| **Disruption of blood flow to the spinal cord
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| **Cervical spinal stenosis
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| *Symptoms
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| **Quadriparesis (greater in upper extremities than lower extremities)
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| **Some loss of pain and temperature sensation also greater in the upper extremities
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| *Prognosis good
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| ===Brown-Sequard===
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| *Etiology
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| **Transverse hemisection of spinal cord
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| **Unilateral cord compression
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| *Symptoms
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| **Ipsilateral spastic paresis
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| **Loss of proprioception and vibratory sensation
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| **Contralateral loss of pain and temperature sensation
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| *Prognosis good
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| ===Cauda Equina ===
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| *Etiology
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| **Peripheral nerve injury
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| *Symptoms
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| **Variable motor and sensory loss in the lower extremities
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| **Sciatica
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| **Bowel/bladder dysfunction
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| **Saddle anesthesia
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| *Prognosis good
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| ==See Also==
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| [[Spinal Fractures]]
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| [[Neurogenic Shock]]
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| [[Cord Compression]]
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| ==Source==
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| DONALDSON 9/07 (Adapted from Lampe, Hockberger, Brower, and Mistry)
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| [[Category:Neuro]]
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| [[Category:Trauma]]
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