Spinal Cord Issues: Brown Sequard, Anterior, Posterior, Central Cord, B12 Vit E deficiency, ALS, MS ☺️ Flashcards
Describe the location of the -motor pyramidal tracts -sensory spinothalamic -sensory leminiscal column Decussation and function
Motor pyramidal - corticospinal
- M D lateral =(M)=> limb mv
- SC D - anterior =(SC)=> trunk, neck, shoulder mv
Sensory spinothalamic - pain, temp,
-dorsal =(SC)=> anterior
Sensory leminiscal - proprioception, fine touch, vibration
-dorsal =(M)=>
Brown Sequard syndrome
-tracts affected and presentation
Corticospinal - ipsilateral spastic
Spinothalamic - contralateral pain, temperature loss
Dorsal - ipsilateral fine, vibration loss
Subacute combined degeneration of the spinal cord
- cause
- tracts affected and presentation
Vitamin B12, E deficiency
Corticospinal - bilateral spastic
Spinothalamic - bilateral pain, temperature loss
Dorsal - bilateral fine, vibration loss
Multiple sclerosis
-tracts affected and presentation
Combination of motor, sensory, cerebellar symptoms that generally relapse and remit
- asymmetrical, varying spinal tracts involved
- Urthoffs, Lhermitte’s sign
- optic neuritis, fatigue
Dysdiadochokinesis Ataxia Nystagmus Intention tremor Slurred, staccato speech Hypotonia
Anterior cord syndrome
- tracts affected and presentation
- common cause
Corticospinal - bilateral spastic
Spinothalamic - bilateral pain, temperature loss
No change in fine touch, vibration
Anterior spinal artery occlusion
Hyperflexion injury
Central cord syndrome
- tracts affected and presentation
- common cause
Motor > Sensory
Upper > Lower
Distal > Proximal
Sensory - cape like distribution across upper back,
Neck hyperextension
ALS
- tracts affected and presentation
- pathophysiology
UMN and LMN signs, generally no sensory signs
-wasting of thenars, tib ant
Multifactorial - reactive gliosis, inflammation and genetic predisposition
