cervical spine Flashcards
neck pain, myelopathy, DM, IVDU
check for epidural abscess
presentation cervical myelopathy
gait instability, bilateral numbness tingling, difficulty buttoning shirts
tests for cervical myelopathy
grip and release test, Hoffman’s sign, clonus, babinski, toe to heel gait
JOA classification
JOA 4 (4 wheels) - wheelchair bound, needs ADL assistance JOA14 - mild ambulatory, functioning
if patient has lumbar spinal stenosis + myelopathy symptoms then what
get cervical MRI
buzzword: asymmetric periventricular plaques
MS
Outcome of cervical myelopathy predicted by
severity of symptoms at treatment, older age, smoking, preop comorbidities, T2 intensity, transverse area of spinal cord
cervical myelopathy natural history
stepwise progression and deterioration
Cervical myelopathy, when to go anterior?
if >10 degrees kyphosis bc cord is draped over anterior vertebrae or only 1 or 2 levels of compression
when to back up ACDF
3 or more levels, then need posterior
T/F: T12 pedicle is bigger than L1
T
indication for cervical disc replacement
single and 2 level cervical disc disease with minimum facet disease
clinical outcomes equivalent to ACDF, reduced reoperation rate, reduced adjacent level disease
T/F: Vance powder decreases infection in posterior cervical surgery
true
why does c5 palsy occur
any surgery that shifts the cord posterior stretches the nerve, treatment is observation and reassurance
atlantoaxial subluxation can present with what:
occipital headaches due to compression of occipital branch of C2
ADI greater than ? and SAC/PADI ? are indication for surgery
ADI >10
PADI/SAC <14
treat with C1/2 fusion
how to treat basilar invagination
occiput to cervical fusion, indication is progressive cranial migration
mechanism of etanercept
TNFA antagonist
abatacept
MHC receptor antagonist
Disc
NP/Annulus collagen
annulus type 1
NP type 2 collagen (high water content)
blood supply is avascular, nutrition through pores in endplates
C6/7 disc gets what
C7 nerve root bc nerve root is above C7 body