Spinal Cord Injury Flashcards
Involves damage to the spinal nerves through compression, bruising or severing of the spinal cord
Spinal cord injury
Differentiate complete SCI vs incomplete SCI
Complete: complete interruption of nerve tracts leading to TOTAL paralysis and loss of sensation
Incomplete: there is partial preservation between sensory and motor pathways below the level of lesion
Epidemiology for SCI
Males > Females
Young adults (16-30 years old)
Etiology of SCI
Traumatic
- MVA, sports, Falls
Non-traumatic
- Osteoporosis, Myelitis, Arthritis, Multiple Sclerosis
Pathophysiology:
mc MOI that may lead to anterior cord syndrome.
Identify which cord is most susceptible
Flexion
c4 to c7
t12 to l2
Pathophysiology:
Excessive axial loading force
Closely associated with flexion injuries
Compression
Pathophysiology:
MC MOI in elderly (falls)
May lead to Central Cord Syndrome
Hyperextension
Pathophysiology:
Flexion injury directed at a rotated Vertebral Column
Flexion rotation
Pathophysiology:
Horizontal force is applied to adjacent V.C. segment
Shearing
Pathophysiology:
LC MOI
Usually applied as a traction force w/c is common in whiplash injuries
Distraction
Indication whether there is incomplete or complete lesion
Incomplete lesions: (+) sacral sparing
Complete lesions: (-) sacral sparing
Identify and briefly explain 3 tests for sacral sparing
Perianal sensation: through light touch
Anal wink: insertion of finger in the anus
Big toe flexion = (+) anal sphincter
Dorsal column conveys the following sensation:
proprioception, vibration, 2 pt discrimination, kinesthesia
tract for motor pathway
Corticospinal tract
Lateral spinothalamic tract is responsible for transmitting __ and __
Pain and temperature
Anterior spinothalamic tract is responsible for transmitting __ and __
light touch and pressure
Identify which syndrome is being defined:
- Incomplete injury that mostly affects UE
- “Walking SCI”
Central cord syndrome