Exam 4 Neuro Trauma: Spinal Flashcards
Hangman’s Fxr is?
Mechanism of Injury?
Results in?
Fxr of both pedicles of C2
Hyperextension w/ compression
U instantaneous death from cord transection
Jefferson Fxr is?
MOI?
Results in?
Most C fxr of C1
Axial compression
U no cord damage (canal diameter not compromised)
C-spine fxrs may cause damage to what aa?
Vertebral aa
Herniated Disk Dz result of what?
Most C site?
Spontaneous
Trauma
Lumbar
Herniated Disk Dz presentation:
Cervical or Thoracic?
Lumbar?
Radiculopathy
Myelopathy
Radiculopathy (Sensory and Motor)
Herniated Disk Dz imaging?
MRI best
Nerve roots affect what mm:
C5
C6
C7
C5 = deltoid/biceps
C6 = extensor carpi radialis (wrist extension and abduction)
C7 = triceps
Nerve roots affect what mm:
L3
L4
L5
S1
L3 = quads
L4 = hamstrings and tibialis anterior
L5 = extensor hallucis longus (big two extension, dorsiflex/evert/invert foot) and tibialis (dorsiflex/inversion)
S1 = gastrocnemius
C2 Fxr Type I:
Where?
Stable/Unstable?
Tx?
Tip of dens
Unstable
Surgery vs Halo
C2 Fxr Type II:
Where?
Stable/Unstable?
Tx?
Most C type
Base of dens
Unstable
Surgery vs Halo
C2 Fxr Type III:
Where?
Stable/Unstable?
Tx?
Base/body
Stable
Halo vs Collar
Cauda Equina Synd?
Neuro emergency Radiculopathy Bilat legs mm weakness Saddle anesthesia Urine retention ↓ anal sphincter tone
Central Cord Syndrome is?
Caused by?
Most C INcomplete spinal cord injury (SCI)
Congenital or arthritis stenosis
Hyperextension
Central Cord Syndrome presentation? (3)
Tx?
Motor deficit: Upper > Lower
“Man-in-Barrel” (can’t abduct arms)
Upper sensation loss
DYSESTHESIA (painful/abnormal sense of touch)
Surgical decompression
Brown-Sequard is?
Hemi-section of spinal cord
U from penetration, epidural hematoma, herniated nucleus pulposus
