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causes of backpain
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73
Medical
Undergraduate 4
05/23/2017

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Term
vasculature supply to dura mater is provided by?
Definition
middle meningeal artery and vein

innervation by trigeminal nerves V1/2/3

explains extradural heamatoma: middle meningeal artery

subdural heamatoma: due to veins emptying into dural sinuses
Term
true or false?
arachnoid mater is avascular?
Definition
true

it also doesn't have a nerve supply.
Term
which layer of the meninges thickens to form the denticulate ligaments?
Definition
pia mater
Term
cauda equine is fromed by which nerve roots?
Definition
L2-S5
Term
features of cauda equine syndrome
Definition
saddle paraesthesia
incontinence or retention of feaces
reduced anal tone
paralysis or sensory loss

MRI needed urgently for diagnosis
mx: sent for surgery within 36 hours for surgical decompression.
Term
referred causes of back pain
Definition
ruptured AAA
pancreatitis
renal colic
pyelonephritis
peptic ulcer disease
Term
red flags of spinal fracture
Definition
sudden onset severe central pain in spine, relieved by lying down
RTA or fall from height
point tenderness over vertebral body
osteoporosis
structural deformity of spine e.g step from one vertebra to another
Term
red flags suggestive of cancer from back pain
Definition
pain that still remains when lying down and in night
thoracic back pain
age >50 or < 20
hx of cancer
systemic symptoms
Term
red flags suggesting spondyloarthropathy
Definition
early morning stiffness >45mins
night pain
gelling
pain easier with movement and worse after rest
Term
red suggesting high risk of damage to compressed nerve
Definition
significant muscle weakness/wasting
loss of tendon reflexes
positive Babinski reflex
Term
xray features of cancer mets

prostate?
lung/thyroid/kidney?
breast?
Definition
prostate mets look sclerotic
lung/thyroid/kidney mets look osteolytic
breat mets may be either
Term
in xray 2cm may not be seen. which scan may be more sensitive in this case?
Definition
Technetium 99m scintillation scan.
Term
urinary hydroxyproline is elevated in which bone disease?
Definition
Pagets
Term
which back exercises can be taught to be done at home?
Definition
Mckenzie exercises.
Term
what are yellow flag signs?
Definition
chronic pain and psychological factors that can present as a barrier to active rehabilitation.
a belief that if something hurts we don't move it or aggravate it.
Term
refer for neurosurgical or ortho assesement for 1 week if there is ...
Definition
progressive, persistent or severe neurological deficit.
Term
which mediated pain is typically worse on extension of spine?

which pain is reproduced with flexion of the spine?
Definition
facet mediated pain by extension

discogenic pain reproduced with flexion of spine.
Term
there is no disc between C1 and C2. what limits xs motion here?
Definition
ligaments and joint capsules
Term
define myelopathy
Definition
any neurological deficit related to the SC itself.

it can be due to compression of the SC by a prolapsed cervical disc.
Term
what is the gelatinous substance that can herniate and cause nerve compression in the spinal cord?
Definition
nucleus pulposus
Term
red flags for neck pain?
Definition
new symptoms in the very young or very old <20 or > 55 years old

weakness of >1 myotome or loss of sensation involving >1 dermatome

intractable or increasing pain
Term
explain Lhermittes sign?
Definition
flexing the neck causes electric shock like sensations down spine and into limbs
Term
which manoeuver is used to elicit radicular neck pain?
Definition
Spurlings manoeuvre

neck is extended bent laterally and held down.
Term
what is positive Hoffmans reflex? UMN or LMN sign?
Definition
UMN sign

basically when flicking a finger causes adjacent fingers to flex
Term
what is SCheuermann's disease?
Definition
developmental disorder of thoracic spine. overcurvature results in hunchback.
pts cant consciously correct their posture
Term
what does the straight leg raise test for?
Definition
?prolapsed intervertebral disc

leg pain suggest lateral protusion
back pain suggest but cannot confirm central disc collapse
Term
for the roots of the sciatic nerve to be involve where must the pain be?
Definition
below the knee
Term
after you have done a straight leg raise and elicited pain how would you perform a sciatic stretch test?
Definition
lower leg until pain disappears then dorsiflex foot. this increases tension in nerve roots and aggravates any pain or paraesthesia. it is called a positive stretch test.
Term
describe the bowstring test.
what does it test for?
Definition
tibial nerve root irritation

do straight leg raise. once level of pain has been reached flex knee slightly and apply firm pressure with thumb in popliteal fossa over stretched tibial nerve.
radiating pain and paraesthesia suggest nerve root irritation.
Term
describe how to perform the femoral stretch test
Definition
pt should be prone
anterior thing fixed to couch
each knee is flexed in turn. this causes pain in femoral nerve roots L2-4

the test is positive if pain is felt in the anterior compartment of the thigh
Term
abdominal reflex testing is used to test for suspected cord compression of which part of the spine?
Definition
thoracic cord compression

muscle of upper quadrants supplied by T7-10 and lower quadrant by T10-L1
Term
surgical rx for spinal stenosis?
Definition
laminectomy
Term
mx for spinal stenosis?
Definition
conservative: weightloss, physio with forward flexion exercises,
Medical: NSAIDs, epidural steroid injections
surgical: laminectomy
Term
which level does spinal cord terminate?
Definition
Lower margin of L1
Term
red flags suggesting SCC
Definition
gait disturbance
clumsy weak hands
loss of sexual, bladder or bowel fx
Lhermittes sign, UMN signs in lower limbs, LMN signs in upper limbs
Term
lesions in which region can cause quadriplegia

and lesions in which lesion can cause paraplegia?
Definition
cervical lesions - can cause quadriplegia

thoracic lesions - paraplegia
Term
what features are seen in Brown-Sequard's syndrome?
Definition
loss of vibration and proprioception on the same side

loss of pain and temperature of the opposite side.
Term
characteristic triad of neurogenic shock?
Definition
hypotension
relative bradycardia
hypothermia
Term
what are the 3 recommended standard views of c spine?
Definition
AP lateral and odontoid
Term
which imaging should be first line in high risk pts to check fro fractures xray or CT?
Definition
CT as plain xrays are insensitive to small fractures.
Term
when to do MRI if:-
clinical features suggest spinal mets?
features suggest SCC
Definition
MRI in 1 week if ? spinal mets
MRI in 24 hours if features suggest SCC
MRI sooner including out of hours if emergency rx is needed.
Term
what is the serious consequence associated with spinal cord injury at or above T6?
Definition
Autonomic dysreflexia

if not treated properly can lead to seizures, stroke and even death
Term
features of autonomic dysreflexia?
Definition
uncontrolled HTN
severe headache
intense sweating and skin blotches above level of injury
cold and clammy below level of injury
restlessness
chest tightness
bradycardia
dilated pupils
Term
describe the 3 types of decompression surgery?
Definition
laminectomy
discectomy
spinal fusion
Term
mechanical causes of back pain?
Definition
lumbar muscle sprain
herniated nucleus pulposus
spinal stenosis
compression fracture
Term
systemic causes of backpain?
Definition
vertebral discitis
malignancy
CT disease
Term
define spondyloarthropathy
Definition
any joint disease of the vertebral column
Term
with regards to MRI scan and sciatica. for how long must it be present in order to qualify for an MRI scan?
Definition
6 weeks.

anything less is managed conservatively
Term
how is spinal claudication relieved?
Definition
by bending forwards or sitting
Term
3 types of hemiarthroplasties. what are they?
Definition
unipolar - femoral head and neck replaced
bipolar - femoral head and neck and acetabular cup
resurfacing - replacing the surface of the femoral head: done in young people
Term
when should pts undergo outpt follow up after a hip replacement?
Definition
within 8 weeks
Term
complications of hip replacement surgery
Definition
post op pain and constipation
UTI or retention: catheter needed
VTE
chest infection
implant fracture
wound infection
Term
what are the 3 types of knee replacement available?
Definition
unicompartmental
unconstrained bicompartmental
constrained bicompartmental
Term
features of unicompartmental knee replacement?
Definition
replacement of medial or lateral tibiofemoral compartment only
usually used for OA
not suitable for those with RA
Term
features of unconstrained bicompartmental knee replacement?
Definition
most common from of knee replacement
femoral part metal
tibial part metal and plastic
patella component: polyethylene and metal
Term
from the 3 types of knee replacements which is the most common type of knee replacement?
Definition
unconstrained bicompartmental
Term
when considerable bone loss is involved such as in bone tumours which type of knee replacement may be used?
Definition
constrained bicompartmental replacement
Term
features of constrained bicompartmental knee replacement?
Definition
the joint works like a fixed hinge
is more prone to loosening
Term
which severe consequence is associated with spinal cord injury at or above T6?
Definition
autonomic dysreflexia. if not rx promptly it can lead to seizures stroke and even death
Term
indications for surgical referral in joint pain?
Definition
progressive loss of mobility
tendon rupture
nocturnal pain
Term
contraindication to knee surgery replacement?
Definition
sepsis in knee
poor knee extensor function

relative CI
past hx of knee osteomyelitis
infection around incisional line area
obesity
Term
post op care after knee replacement?
Definition
early mobilisation within 24 hours is encourage
most pt walks on 2nd post op day
Term
driving and knee replacement?
Definition
if left knee and car automatic then driving can be resume in 1 week

if manual and right knee then 4-6 weeks after you may start driving
Term
complications of knee joint replacement?
Definition
VTE
infection
patellofemoral instability
vascular complications
aseptic loosening
Term
what do you know about omega 3?
Definition
there are long chain ones from oily fish
there are short chain ones from plants

our body uses the long chain ones.
just 1 portion of oily fish a week (2 portions of fish in total 1 of which should be oily fish) can help your heart and possibly your brain and joints.
Term
many people swear by cod liver oil. is it true that they lubricate your joints?
Definition
No this is not true.
But they have been found to reduce pain and inflammation if you suffer from RA. They are also showing promise in people who suffer from OA, the type we associate with wear and tear.
Term
what might evening primrose oil be used for?
Definition
raynauds disease
Term
what does acupuncture involve?
Definition
inserting small needles into various points in the body to stimulate nerve impluses.

western acupuncture can be used as an analgesic or anaesthetic agent.
Term
what problems could acupuncture be considered for?
Definition
headaches and migraine
neckpain
nausea and vomiting during chemo
back pain
P6 accupoint stimulation for nausea and vomiting post op or during pregnancy
Term
side effects of accupunture
Definition
nausea and fainting
Term
what is the relevance of THR logo on herbal medicines?
Definition
this is the Traditional Herbal Registration. any medicines that have been approved can carry this logo. Herbal medicines aren't regulated so you cannot tell about the dose and purity of the medicines.

By carrying this logo you can tell the product has the correct dose and is of high quality.
Term
uses for evening primrose?
Definition
PMS
breast pain
endometriosis
hot flushes
Term
cannabis and its uses

what is name of the cannabis spray that can be used as a muscle relaxant?
Definition
for muscle spasm, cancer pain

Sativex is the name of the spray. it contains dronabinol and cannabidiol
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