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26 Cards in this Set

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Where does the conus medullaris end and the cauda equina begin?
L1
Which conditions can cause sciatica?
Disc herniation
DJD
Spinal stenosis
Spondylolisthesis
Which muscle does the sciatic nerve pass through just below the sciatic foramen?
Piriformis muscle

Piriformis Syndrome- Pinching of the nerve
Increasing trunk or leg weakness, bladder and/or bowel incontinence is an indication of?
Cauda Equina Syndrome
What is "sensory march"
Seen in spinal stenosis, it's when pain starts in the legs and moves up or vice-versa
In this condition, there is a defect in the pars interarticularis (bone connecting the superior and inferior facets)
Spondylolysis

Most Common vertebra involved is L5
anterior slipping of the L5 vertebra over the sacrum
Spondylolisthesis
What is the MCC of spondylolisthesis
Spondylolysis
What nerve is affected with an inability to dorsiflex
peroneal nerve
Where do most herniated disc occur?
L4-L5 and L5-S1 levels
What test is performed to check for herniated discs?
A Lasegue test, also known as Straight-leg Raise Test
What are the S/Sx of Cauda Equina Syndrome
Bilateral leg pain
Loss of perianal sensation
Paralysis of the bladder
Weakness of the anal sphincter
What are the branches of the brachial plexus?
Musculocutaneous
Axillary
Radial
Median
Ulnar
When do you do an ortho referral in a patient with scoliosis?
when the curve is >20*
A fractured caused by lap seatbelts
Chance fx
What are the characteristics if spinal shock?
warm, pink, dry skin;
adequate urine output;
and relative bradycardia
What are the Nexus c-spine rules?
DAMN!!!

Distracting injury
ALOC, including alcohol
Midline tenderness,crepitus
Neuro deficit; parasthesia
What 3 views are required for a cervical spine injury?
anteroposterior view
lateral view
odontoid view
fracture of the pedicles or pars of the axis (C2)
Hangman's fracture
Motor and sensory loss in the lower extremities
Sciatica
Bowel or bladder dysfunction
“saddle anesthesia"
Cauda equina syndrome
MCC of Brown-Sequard syndrome
penetrating trauma
Describe the Brown-Sequard syndrome
loss of ipsilateral motor function, proprioception, light touch sensation

loss of contralateral pain and temperature sensation.
This syndrome is assoc with hyperextension injuries and presents with
motor weakness more prominent in the arms than in the legs and with
variable sensory loss.
Central cord syndrome
Describe the Anterior cord syndrome
loss of motor function and pain and temperature sensation distal to the level of injury
with preservation of light touch, vibration, and proprioception
This is an axial load compression fracture of the anterior and posterior arches of C1
Jefferson's fracture
A fracture where the anterior longitudinal ligament avulses the anterior-inferior corner of the vertebral body.
Extension “teardrop” fracture