MSK-1 Flashcards
What is the most common MSK complaint? What should you remember?
- Pain
- Remember OLD CARTS
- Character & Timing are importanT for determining the mechanism of injury (MOI)
What is some pain due to?
- Systemic
- Infectious
- Visceral
- Neoplastic
- Psychosocial problems –not mechanical or traumatic.
What are multiple MSK ROS topics you need to ask?
- Constitutional – Fever, night sweats, weight loss, HIV or other immunosuppression like steroid use.
- Any CA, ever
- Eye discharge or pruritis
- GU complaint/ sexual contact
- GI recent illness
- Any procedures to area of complaint, like epidural
TMJ disorder:
* Causes?
* S/S?
* Imaging findings? What do you need to rule out?
* What is treatment?
- Causes: Stress, bruxism, hypermobility syndrome and malocclusion
- S/S: Pain aggravated by jaw movement; may have restricted ROM, click/pop may be felt or heard
- Imaging: normal x-ray, arthritis is late finding, Rule out OA, RA, tumor, congenital growth abnormalities
- Treatment: Most resolve without tx; lifestyle modifications, behavior modification, possible referral to ENT or maxillofacial surgeon
What is the TM joint? What is inside the TM joint?
Torticollis:
* May result from what?
* May be caused by what?
* What is the sign?
* What may follow in children?
* What do you need to rule out?
- May result from injury/illness in neonate
- May be caused by sternocleidomastoid muscle contracture
- Head will tilt toward side of contracture
- May follow URI or mild trauma in children
- Rule out: Spinal cord tumor, RA other etiologies
Torticollis in older child or adult:
* Results from what?
* What is spasmodic toricollis from?
- Usually results from minor trauma
- Sleeping in awkward position precipitates
- Spasmodic torticollis (dystonia) results from stress, physical overload and sudden movement – and is the most common type
What is the torticollis treatment? (adult v children)
- Passive stretching effective in 97% of all cases in infants
- Surgical release of the muscle origin and insertion an option if no resolution in the first year of life
- Acquired torticollis in childhood - traction or a cervical collar for 1-2 days usually effective
- Adults will respond to gentle stretching, +/- muscle relaxants
What is a complication of infantil torticollis?
Striking facial asymmetry-> can have atropy
A child with chin tilted to the right and head tilted to left, has what and what muscle is affected?
Torticollis and left SCM
What is the most common condition affecting the cervical spine?
Spondylosis
What is spondylosis? What can happen?
This includes degenerative changes occurring in the disk (most C5-C6) with disk narrowing and osteophytes. Facet joints are affected later. Sometimes, paresthesia occurs in fingers. Pain increased with extension and decreased with flexion
Worse prognosis central disk protrusion of spondylosis can cause what?
can cause clonus and Babinski sign
with gait disturbance
Spondylosis:
What is the treatment?
What is the last resort?
What has a similar presentation to spndylosis?
- treatment is conservative treatment with PT, collar, traction, and NSAIDs
- Fusion or discectomy=last resort
- Whiplash is similar as above with gentle ROM training soon after injury.
What are signs of strain and radiculopathy?
Strain
* Bilateral or unilateral symptoms
* Normal neuro exam
* NO radicular symptoms
Radiculopathy
* Neurological symptoms distal to complaint (sciatica) in a specific nerve distribution
- What is the most common cause of radiculopathy?
- What test do you need to do?
- What is the choice of study (CT, x-ray, MRI, US)?
- When do you refer to neuro?
- Most common cause is cervical arthritis or disc nucleus pulposus herniation
- Do a Spurling test
- MRI is the study of choice
- Refer to neurosurgery for management, in absence of loss of function
Kyphosis:
* What are some causes?
* What is treatment for older and younger patients?
- May be congenital or age-related , Osteoporosis may cause small fractures, which collapse the spine
- Treatment for many young patients is physical therapy
- Treatment for older patients is pain management and calcium supplements
- What degree of kyphosis is observed every 3-4mo?
- What degree or sign can be treated with a milwaukee brace?
- What is an option?
- Curves of 45-60 degrees observed every 3-4mo
- Curves >60 degrees or with persistent pain can be treated with Milwaukee brace
- Surgery is an option
What is this
Kyphosis
Scoliosis:
* What is it?
* What is the mechanism? What is the most common?
* What is a sign?
* What test should you use?
- Mediolateral curves of spine
- Mechanism: Positive family history
* Adolescent idiopathic scoliosis most common
* Most commonly seen in teenage girls
* Tuberculosis of the spine (Pott’s disease) - Uneven Appearance: asymmetry in shoulder and iliac height; asymmetric scapular prominence; flank crease with forward bending, showing right thoracic and left lumbar prominence
- Use Adam’s Forward Bend Test
What does the USPSTF conclude about scoliosis screening?
”Most cases detected through screening will not progress to a clinically significant form of scoliosis. Scoliosis needing aggressive treatment, such as surgery, is likely to be detected without screening….the USPSTF concluded that the harms of screening adolescents for idiopathic scoliosis exceed the potential benefits.”
How is the cobb angle formed in scoliosis?
Scoliosis
- What is the angle of cobb if only observation?
- What is the angle of cobb if bracing is needed?
- What is angle of cobb if surgery is needed?
- Observation if curve is >10 but <25 degrees
- Treatment is bracing if Cobb angle exceeds 25 degrees
- Treatment is surgical if Cobb angle exceeds 45-50 degrees or if neuropathy is present
- What does the straight leg raise test?
- What is a positive sign? What can that be called?
- What is bowstring sign?
- There is also a contralateral straight leg sign that may be more specific for what?
- This tests for radiculopathy—referred nerve pain, which may indicate nerve impingement at any level, usually lumbar
- Positive if it elicits pain, sometimes referred to as Lasègue’s sign.
- Bowstring sign means the pain is lessened when the knee is flexed.
- There is also a contralateral straight leg sign that may be more specific for disc herniation.
What is the specificity and sensitivity of straight leg raise?
- Specificity 40%
- Sensitivity 95%
Both specificity and sensitivity don’t have anything to do with test just being positive or negative. They deal with probability of TRUEness of the negative or positive result.
- What is specificity?
- What does a large specificity means?
- What does a positive result signifies?
- The probability that the test will be truly negative among patients who do not have the disease.
- Negative test/all patients without the disease, including false positives
- A large specificity means the test can rule-in a disease
- A positive result signifies a high probability of the presence of disease. A test with 100% specificity will recognize all patients without the disease by testing negative, so a positive test result would definitely rule in the presence of the disease.
SLR of 40% specificity means what?
40% with negative test don’t have the disease
- What is sensitivity?
- What can a large sensitivity mean?
- Probability of a true positive test in patients with the disease
- Positive tests/ all patients who have the disease, including false
negatives - A large sensitivity can rule-out the disease
What does the SLR sensitivity of 95% means
95% with the disease test positive
Give example of poor specificity and good sensitivity using SLR?
- A person with a negative straight leg raise probably does not have radiculopathy. (Good sensitivity)
- A person with a positive straight leg raise is not so certain to have radiculopathy (poor specificity)
What does it mean when something is pathomneumonic?
We mean it has a great specificity. specificity. The sign or symptom is very specific to the disease.
Back Pain Differential
* Usually “Nonspecific” Mechanical is what (5)?
- Lumbar Sprain/ strain
- Degenerative processes of disks and facets
- Spondilolisthesis
- Spondylolysis
- Scoliosis
Back Pain Differential, Mechanical is what? (7)
- Sprain/strain
- Degenerative discs
- Spondylolysis, Spondylolisthesis
- Herniated disc
- Spinal stenosis
- Fractures
- Kyphosis
Back pain differential, Non-mechanical can include what? (cancer, infection, inflammation)
- Cancer – MM (Multiple Myeloma), Metastatic, Lymphoma, Leukemia, Spinal tumor, Retroperitoneal tumor
- Infection – Osteomyelitis, Septic disc, Abscess
- Inflammation - Ankylosing Spondylitis, Psoriatic spondylitis, Reiter’s, IBS (inflammatory Bowel Syndrome), Paget’s
- When is low back pain very common?
- Can be caused by what factors?
- Extremely common, especially in roofers, pregnancy, obesity, and inactive people. Very common in those with weak core muscles.
- Caused by many factors, including osteoporosis with small fractures, herniated discs, muscle spasms, degenerative joint disorders like osteoarthritis, kyphosis and scoliosis, fibromyalgia and depression.
Low back pain:
* What are S/S?
* Pain from MSK causes will have what?
* What will be a sign in SI joint involvement?
* What will a sign in spinal stenosis?
- S/S: Pain originated in the back and radiating down leg suggests nerve root irritation.
- Pain from musculoskeletal causes=point tenderness
- Unilateral low back and buttock pain that gets worse with standing in one position=sacroiliac joint involvement
- Pain in the elderly that is increased by walking and relieved by leaning forward =spinal stenosis
LOW BACK PAIN
- What is the most common cause of low back pain?
- Can be secondary to what?
- What are S/S?
- What are tests?
- What should you do during the physical exam?
- When is imaging helpful?
- The most common cause of low back pain is muscle strain
- Can be secondary to prolapsed intervertebral disk and low back strain
- Signs and symptoms: Pain may be dull, achy, or sharp with movement
- Tests: Good H&P,
- PE: palpate, assess muscle tone, neuro exam distally, straight-leg raise
- Imaging is not helpful unless Red Flag or you have clinical suspicion in absence of red flags
What are the red flags of back pain?
- Trauma
- Hx CA, Osteoporosis, weight loss
- Hx HIV, steroids, IV drugs
- Hx of constitutional symptoms like fever, weight loss
- Age >70
- Disabling symptoms
- Focal neuro deficit on exam (like sensory or motor deficit, change in reflexes, loss of rectal tone)
- Symptoms for more than 4-6 weeks
GET IMAGING
When is x-ray, CT, MRI useful in low back pain?
- Xray is sufficient in minimally traumatic events or persistent pain
- CT useful for bony stenosis and lateral nerve root entrapment
- MRI useful in cord pathology, tumors, stenosis, herniated disks, and infections.
Back sprain and strain:
* What is the first line of treatment?
* What treatment is short term?
* What is chronically used to treatement?
- Acetaminophen is considered first-line, NSAIDS better than placebo
- Muscle relaxants and opioids are short-term only
- Chronically: anticonvulsants, tricyclic antidepressants
Back sprain and strain:
* ROM?
* What is not recommended? What should you use instead?
* What is prevention?
* Wha can be very beneficial in repeated episodes?
* What can be helpful?
- Gentle slow movements increasing ROM
- Bedrest is not recommended: use MICE (Motion + ICE) instead of RICE
- Prevention: Lifting technique, physical therapy, increased regular exercise like walking, core muscle exercise.
- Physical Therapy very beneficial in repeated episodes
- Reassurance is helpful, avoid “degenerative”
Sacroiliitis:
* What is it?
* Stems from what?
* On exam patients will have what?
* What is txt?
- Inflammation of SI joint
- Stems from improper lifting
- On exam patients will have reproducible point tenderness over SI joint, pain reproduced by hip flexion (climbing stairs) OR in Left lateral decubitus position (LLDP) apply pressure to pelvis
* Pain can be referred to buttock
* SLR is typically negative - Tx with NSAIDs and steroids for severe pain
Pain usually stays local
Sciatica:
* What is it?
* What are the s/s?
* Where is point tenderness?
- Inflammation of the sciatic nerve
- Pain, burning tingling
that may start in low
back or buttock, passing
down posterior thigh, sometimes below knee.- Point tenderness is usually between PSIS and greater trochanter
Herniated disc:
* What is herniated?
* Where can it occur?
* If more central, then what is a higher chance?
* If more lateral, the more likely what?
- Herniated Nucleus Pulposus
- Can occur in the central, posterolateral foraminal and extraforaminal zones
- The more central the herniation, the higher chance of compression of the traversing nerve root.
- The more lateral the herniation, the more likely a compression of the exiting nerve root
A disc herniation will have a clinical presentation based upon what? Explain
Pance prep pearls
based upon where the herniation occurs
- What is the mechanism of Herniated disc?
- What cuases weakness, numbness and radicular pain?
- Mechanism: Nuclear material displaced into the spinal cord causing pain
- Compression of motor nerve causes weakness
- Compression of sensory nerve causes numbness
- Radicular pain results from inflammation of nerve
herniated disc:
* What is the most common
location?
* What happens with age?
* What is are the risk factors?
- L4/5 , L5/S1 most common
- With age, the levels move up in predominance (can happen at any spine level)
- Risk factor – genetic inheritance, occupational and recreational injury, smoking, obesity
Herniated Disc:
* What does it cause?
* less than half have what?
* What are s/s?
* Pain and symptoms are worse and better when?
* Patient prefer what position?
- Prodrome of low back pain that acutely changes to radiating leg pain (sciatica)
- Less than half have an precipitating event
- Numbness or weakness in dermatome
* Pain and symptoms worse in forward flexion, better in extension - Prefer standing or lying to sitting
What is this?
herniated disc
- Not all pain is what in the lower back?
- What do you need to be careful of?
- What does a disc protrusion need or not need?
Not all pain is a herniation, not all herniations cause pain!
* Be careful to correlate clinical findings with MRI findings – most patients develop asymptomatic herniations with age
* A “disc protrusion” on MRI does not necessary justify surgical intervention.
For a herniated disc, what test is positive? What is usually negative? What is necessary for evaluation?
Positive Straight leg raise (SLR), X-ray (negative usually), MRI is necessary for evaluation of soft tissue and is a gold-standard
What is the treatment for a herniated disc?
Physical therapy, NSAIDs, muscle relaxants, narcotics, for chronic pain: send the patient to a pain specialist—narcotic medications on a regular basis, intrathecal midazolam (versed), and epidural steroid injections
* Short course of steroids are beneficial initially
What are the indications for operative treatment for back pain?
- Persistent treatment in spite of a reasonable course of nonoperative treatment
- Profound or progressive motor deficit
- Cauda Equina Syndrome
- Intractable pain
- Patient preference
Waddell signs=
Determines further imaging
Overview: What are the waddell signs for back pain? How many do you need positive for further imaging?
Waddell Signs
* What is superifical tenderness?
* What is non-anatomic tenderness?
* What is axial loading?
- Superficial tenderness: Tenderness over a wide area of lumbar skin to light touch or pinch.
- Non-anatomic tenderness: Deep tenderness over a wide area that crosses the over non-anatomic boundaries.
- Axial loading: In axial loading patient stands and the examiner presses downwards vertically on the patient’s head, eliciting lumbar pain.
Waddell Signs
* What is acetabular rotation?
* What type of leg raise?
* What is regional sensory disturbance?
- Acetabular rotation: The examiner rotates the shoulder and the pelvis passively in the same plane while the patient is standing. It is a positive sign if pain is elicited in the first 30 degrees of rotation.
- Distracted straight leg raise
- Regional sensory disturbance: The patient’s reports pain that follows a stocking-like disturbance and doesn’t follow a dermatomal pattern
Waddell signs
* What is regional weakness?
Weakness or cogwheel “giving away” that can’t be explained on neuroanatomical basis.
A 35-year-old professor complains of sudden left-sided low back pain that began when he picked-up and swung his 40-pound child yesterday. Pain is 6/10 constant worse with movement, relieved with Tylenol. He denies other trauma or fall. PMHx is unremarkable. He walks leaning forward slightly. HR is 80, BP is 110/60, T is 97.6. Paraspinal musculature is hypertonic and mildly tender. Straight leg raise is negative. Sensation is intact. Strength 5/5 in bilateral legs.
What is the most appropriate plan for this patient?
A. Plain AP back x-ray
B. MRI
C. Emergent Neurology consult
D. Symptomatic management and follow-up as needed
E. CT L-Spine
D. Symptomatic management and follow-up as needed
Ankylosing Spondylitis:
* What is the mechanism?
* What does it present as?
* What might it also involve?
* What is the incidence?
* What age ranges?
* What is the male to female ratio?
- Mechanism: Chronic inflammatory disease of the axial skeletal joints,
progressively ascending - Presents as intermittent diffuse low back pain and morning stiffness, with decreased ROM
- Also may involve the aorta, lung and uvea (multi-system disease with hereditary component)
- 1 in 1,000 incidence
- Disease presents between ages 20-30
- Male to Female ratio 3>1
Signs and symptoms of ankylosing spondylitis:
* Acute?
* Chronic?
Acutely —pain and stiffness, worst in the morning, improves throughout the day (similar to RA)
* SI joints are earliest involved
* Should be considered in young adult male with morning joint stiffness
Chronically—fusion and fibrosis of vertebrae with decreased ROM and progressive worsening if natural spinal curves, osteopenia starts to develop
Ankylosing Spondylitis:
* What is it associated with?
* What is a typical triad?
- Associated with thoracic hyperkyphosis, painless joint effusions and restricted thoracic expansion
- Hyperkyphotic curve, plantar fasciitis, inflamed costosternal joints – typical triad, though not all will be present in all patients
Ankylosing Spondylitis:
* What does the x rays show?
* What are the labs?
* What is the treament?
- Tests: X-ray “Bamboo Spine” secondary to a fusion and generalized osteopenia,
- Labs–elevated ESR, HLA B27+, (although specificity is low so it is not a screening test)
* It is thought that the combo of this antigen and an exogenic component (Klebsiella or Chlamydia) trigger disease process - Treatment: Anti-inflammatories, physical therapy and exercise, oral or injected steroids, and surgery
What is this?
Ankylosing spondylitis
Again: what is the treatment of Ankylosing spondylitis?
- Nothing prevents progression
- Bracing helps with comfort early
- NSAIDs, PT with emphasis on posture, extension exercises, and breathing exercises. Swimming is great!
- May develop spinal cord compression requiring surgical intervention
- Bony growth may necessitate surgical intervention
Spinal stenosis:
* What is the mechanism?
* What population it is more common?
* What is the most common cause of spinal stenosis?
* Inherited or degenerative?
* What spinal levels?
* What can it be assoicated with?
- Mechanism: nerve compression caused by narrowing of the spinal canal, nerve root canal and intervertebral foramina
- More common in men and women >50yr (most common in 60s)
- Aging with secondary changes is most common cause of spinal stenosis
- Inherited or degenerative
- Can occur at single or multiple spinal levels
- May or may not be associated with sciatica
Which type of spinal stenosis is non-dematomal pain and which one is dermatomal?
- “Central” stenosis – bilat non-dermatomal pain
- “lateral” - dermatomal
What are the signs and symptoms of spinal stenosis?
Signs and Symptoms: Persistent pain in arms and legs (exacerbated with walking or prolonged standing), pain relieved by leaning forward, decreased sensation, numbness, decreased ROM, and weakness
What is pseudoclaudication or neurogenic claudication? What is it relieved by?
“Pseudoclaudication” or neurogenic claudication- pain, even paresthesias in ambulation from compression of cord or nerves.
* Relieved by leaning forward
Spinal stenosis:
* What are some tests that can be done?
* What tests can rule out but not assure something?
- Tests: H&P, X-ray (degenerative changes), CT, MRI, myelogram, Bone Scan
- CT and MRI can rule OUT spinal stenosis but can not assure the visualized stenosis is causing patient symptoms
What is the treatment of spinal stenosis?
Treatment: Stretching and strengthening exercises, NSAIDs, analgesics, steroid injections, nerve blocks, braces, surgery (decompression and fusion)
* Percutaneous image-guided lumbar decompression(PILD) – “band-aid” surgery specifically for lumbar spinal stenosis caused by a thickening of a ligamentum flavum
* Surgical decompression in setting of neurogenic compromise
What are the different surgical options for spinal stenosis?
- Laminectomy – most common, removal of lamina, bone spurs
- Laminoplasty – lamina removed, plates and screws replace
- Foraminotomy - decompression allowing room for nerve root exit
- Interspinous Process Spacers – spacers placed between spinous processes to create room, also involves a partial laminectomy
- Spinal fusion – reserved for patients with radicular pain, or unstable spine and if other options have not been effective. Long recovery.
Spine trauma:
* Early _
* Early _
* 85% of c-spine injuries are due what?
* What do you need to stabilize and identify?
* What do you need to presume?
* What should you suspect with a head and brain trauma?
* What should you perform?
* What orders needs to be done?
* Immediate _ consult
- Early recognition
- Early immobilization
- 85% of c-spine injuries are due to MVAs, many multi-trauma
- Stabilize neck, identify life-threatening injuries
- PRESUME a spinal cord injury with multi-trauma
- Suspect a spinal cord injury with head/brain trauma
- Perform impeccable neurologic exam to include sensory
- CT or MRI – whichever is available fast
- Immediate neuro consult
What are the most common spinal cord syndromes?
- MVA 41%
- Falls 13%
- Firearms 9%
- Recreation 5%
- Tintinalli, EM 4th Ed., P. 1147
For complete v partial cord syndromes, when can the prognosis be made?
Prognosis cannot be made until spinal shock has resolved , about 24 hours
What does complete and partial cord injuries result in?
- Complete cord injury results in paralysis distal to the lesion
- Partial cord injuries will have “some degree of recovery”- Tintinalli
What happens in an anterior cord injury?
Motor paralysis below the lesion, loss of pain and temperature, preservation of sensation, proprioception and vibratory sense
What is the result from a central cord injury? What usually causes this injury?
Central Cord (usually from hyperextension, spondylolisthesis, or stenosis)
* Weakness, loss of pain in the upper extremities worse than in lower (Good prognosis)
What happens in a posterior cord injury?
Posterior Cord – aka posterior spinal artery syndrome damaging dorsal columns
* Loss of vibration, proprioception and fine touch
What is happening with brown sequard injury?
Contralateral symptoms explained by decussating fibers at nerve roots and medulla
* Ipsilateral weakness, loss of proprioception and vibratory; Contra-lateral loss of pain and temperature
What is not a true cord syndrome? What are the characterics
Cauda Equina (not a true cord syndrome)
* motor and sensory loss in legs, sciatica, bowel/bladder dysfunction and “saddle anesthesia”
A 52-year-old steelworker, regular patient with chronic low back pain
calls the office in a panic suddenly developed “saddle” distribution numbness, and urinary bladder incontinence after lifting.
* Your next step would be?
1. Immediate surgical consult
2. Urology consult
3. Muscle relaxers and analgesic medication
4. Psych consult
5. Massage referral
- Immediate surgical consult
Cauda Equina Syndrome:
* What does the cauda equine composed of?
* What is the mechanism of this issue?
* What are the casues?
- Composed of lumbar, sacral and coccygeal nerve roots
- Mechanism: Rare condition involving large midline disc herniation that compresses several nerve roots, usually at L4-L5 level
- Causes: trauma, lumbar disc disease, abscess, spinal anesthesia, tumor, metastatic disease, late stage ankylosing spondylitis, and idiopathic
Cauda Equina Syndrome
* What are the signs and symptoms?
* If there is back pain, what do you always need to ask about?
* What do you need to look for?
- Signs and Symptoms: low back pain, unilateral and more likely bilateral sciatica, saddle anesthesia with poor rectal tone, bowel/bladder incontinence or urinary retention, lower extremity motor and sensory loss
- Back pain, Always ask about bowel and bladder incontinence! Do a rectal and note tone.
- Clinical PEARL – Look for risk factors for epidural hematoma or abscess
- What is the classic clinical finding of Cauda Equina Syndrome?
- What is the gold standard diagnostic study?
- Saddle anesthesia
- MRI
Cauda Equina Syndrome:
* What are the tests usually done?
* What is the treatment?
- Tests: X-ray (usually normal), MRI of the thecal sac is preferred, lumbar myelogram, post-void residual (urinary retention=neurogenic bladder)
- Treatment: Emergent ortho referral. Pain control, high dose corticosteroids is standard, laminectomy to decompress the posterior spine has variable support
- Admission with immediate consults to neurosurgeon, neurologist and orthopedist