Clin Med: MSK 2 - Upper Body Flashcards
Define Orthopedics
branch of surgery concerned w/ conditions involving the musculoskeletal system
Define Sports Medicine
a branch of medicine that deals w/ physical fitness & the tx & prevention of injuries related to sports & exercise
Define Rheumatology
Branch of medicine devoted to the diagnosis & therapy of rheumatic diseases
Osteoarthritis affected joints
- knees
- hips
- hand
- spine
Osteoarthritis RFs
- older Age
- female Gender
- Obesity
- Occupation
What forms during the different stages of Osteoarthritis?
- Narrowed joint space (loss of cartilage)
- Osteophytes
- Fissures in the cartilage
Osteoarthritis Dx
X-ray–> joint loss space, osteophytes, subchondral bone cysts, bone sclerosis
Osteoarthritis Tx
- Acetaminophen (NO pts w/ liver dz)
- NSAIDS (use caution in the elderly- GI bleed & CV risk & kidney dz)
—> Ibuprofen, Naproxen, Diclofenac, Meloxicam, Cox-2 inhibitors, Topical NSAIDS - Joint injections
–> Corticosteroid
–> Sodium hyaluronate - Glucosamine/chondroitin
- Joint replacement
- Avoid high impact exercises
Causes of spine pain
- injuries or trauma
- neoplasm
- infection
- degeneration
- overuse
What is radicular pain/radiculopathy?
- Pain that originates in a nerve root & radiates along a dermatome
- Dermatome: area of skin supplied by a specific nerve
- Pain + paresthesias
What is myelopathy?
an injury to the spinal cord due to severe compression that causes more severe symptoms
What is a strain?
a stretch or tear in muscle or tendon
What is a sprain?
a stretch or tear in ligament
Red flag that would suggest life threatening condition instead of mechanical neck pain?
- numbness
- tingling
- difficulty moving
Mechanical Neck Pain Dx
How do you know if you need x-rays?
- For acute injury: NEXUS or Canadian C-spine rule
- For chronic pain: usually no x-ray needed
- MRI if neurologic deficits or if pain not improved after 4-6wks of conservative therapy
- X-ray may show straightening of the cervical spine due to muscle spasm
Who can we use the NEXUS criteria for?
pts under 65 yo to rule out spinal injury
Describe NEXUS criteria
- No posterior midline tenderness
- No evidence of intoxication
- Normal level of alertness
- No focal neurologic deficit
- No painful distracting injuries
** YES to all these NO IMAGING**
Who automatically gets imaging according to Canadian C-spine Rule?
- > /= 65
- dangerous mechanism
paresthesias
Canadian C- spine criteria
less than 65yo, has safe ROM, able to rotate neck actively
YES to all these NO IMAGNIG
Mechanical Neck Pain: what do we know about treatment
- early motion is good
- NO OPIATES
- NO cervical collars
Mechanical Neck Pain Tx
- Decr irritants
- Proper posture
- Gentle ROM
- NSAIDS
- +/- Muscle relaxers
- Opiates
- PT
- Acupuncture
- Massage therapy
Torticollis Tx
- muscle relaxers
- botulinum toxin
Cervical Spine fracture Imaging?
CT
Cervical spine fractures Tx
surgery (neuro)
When do we used the Spurling test?
To test cervical disc herniation
Describe the Spurling test?
- neck extended w/ head rotated to affected shoulder while axially loaded
- shoulder or arm pain suggests cervical spinal nerve root compression
Describe disc herniation is C4-C5
- root injured:
- weakness:
- numbness:
- root injured: C5
- weakness: deltoid
- numbness: shoulder
Describe disc herniation is C5-C6
- root injured:
- reflex:
- weakness:
- numbness:
- root injured: C6
- reflex: biceps
- weakness: biceps brachii
- numbness: thumb
Describe disc herniation is C6-C7
- root injured:
- reflex:
- weakness:
- numbness:
- root injured: C7
- reflex: Triceps
- weakness: wrist extensors (wrist drop)
- numbness: 2nd & 3rd digits
Describe disc herniation is C7-T1
- root injured:
- weakness:
- numbness:
- root injured: C8
- weakness: Hand intrinsics
- numbness: 4th & 5th digits
When do we used the Straight leg raise?
to test for lumbar disc herniation
Describe the straight leg raise.
- with pt in supine position & legs straight, elevate affected leg by the heel slowly w/o rotation of hip or abduction or adduction of the leg
test (+) if radiating pain in affected leg reproduced at 30-70 degrees of hip flexion
Disc herniation Dx
MRI
General Disc Herniation Tx
Conservative management
- Oral analgesics
- short course steroids
- avoid provocative activities
- PT w/ exercise & gradual mobilization
- cervical tractions
Epidural steroid injection (via fluoroscopy)
Indications for surgery in cervical disc herniation
- S/S of cervical radiculopathy (ie, nerve root dysfunction, pain, or both)
- Evidence of cervical nerve root compression by MRI
- Progressive motor weakness
Indications for surgery in lumbar disc herniation
- cauda equina syndrome
- severe & progressive neurologic deficits
- no improvement after 6 wks of conservative tx if nerve root compression on MRI
Spondylolysis/Spondylolisthesis
Dx:
- X-ray
- MRI if more info needed on soft tissues or if dx unclear
Spondylolysis/Spondylolisthesis Tx
- rest
- NSAIDS
- PT
- Surgery if no improvement w/ conservative tx
Spinal stenosis Dx
MRI
Spinal Stenosis Tx
- Conservative:
–> Oral analgesics
–> Avoidance of provocative activities
–> PT w/ exercise & gradual mobilization - Epidural Corticosteroid Injections
- Surg if conservative tx fails
Incidence of spinal epidural abscesses appears to be rising due to higher rates of:
- Incr rates of spinal anesthesia
- spinal surg & other interventions
- use of indwelling IV catheters & assoc. bloodstream infxs
- IV drug use*
- iatrogenic immunosuppression
4 stages of Epidural abscess
- Stage 1: back pain, fever, & local spine tenderness
- Stage 2 spinal irritation, including radicular pain, hyperreflexia & nuchal rigidity
- Stage 3 the bowel & bladder, w/ symp of fecal or urinary incontinence, also neurologic deficits such as motor weakness
- Stage 4, paralysis
What does a neuro exam consist of?
check motor & sensation, rectal tone, saddle anesthesia, reflexes
What % of people will have 3 ER visits before Dx
75%
Epidural Abscess Dx
- MRI w/ gadolinium (contrast) - test of choice
- CBC (incr WBC & ESR), CRP, blood cultures
Epidural Abscess Tx
- Start BSAbx STAT (after blood cultures)
- Consult neurosurgery
- Conservative tx: abx only or abx & CT guided drainage
- Surg tx: laminectomy w/ evacuation of abscess
RFs for vertebral osteomyelitis
- immunosuppression
- DM
- hepatic dz
- renal failure req hemodialysis
- coronary heart dz
- malignancy
- IV drug use
- prior surgical procedures (including spine surgery & organ transplantations)
Discitis Dx
- MRI most sensitive
- CBC, CRP, blood cultures
Discitis Tx
- IV Abx typically for 2-6 weeks
- May req. surgery if…
–> Not responding to IV Abx (track w/ ESR/CRP)
–> Assoc. w/ hardware - Surg includes debridement of any infected soft tissue & bone
Transverse Myelitis Dx
MRI of entire spine w/ & w/o IV gadolinium
- Labs to assess for autoimmune or infectious dz
- CSF analysis
Transverse Myelitis Tx
- stop progression & accelerate resolution
- new-onset myelitis –> admit for observation & management
Meds: - High dose steroids
- Immunosuppressive drugs
- Tx underlying condition
Define acute low back pain
nonspecific pain lasting <4 wks
Define subacute pain
lasts 4 - 12 wks
Define chronic low back pain
pain lasting >12 wks
Low back sprain/strain RFs
- age > 30 years
- physical inactivity
- obesity
- arthritis
- osteoporosis
- pregnancy
- smoking
- psychosocial factors, including
- stress or depression
- occupational factors
- poor posture
Low back sprain/strain Dx
- no red flags–> conservative tx for 4-6 wks w/o imaging
- X-ray may be obtained 1st, but MRI is the imaging of choice when conservative tx fails
Low back sprain/strain red flag symptoms
- s/s of cauda equina syndrome
- fecal incontinence or saddle anesthesia
- neurologic deficits
Low back sprain/strain conservative Tx
- Heat
- Massage
- Acupuncture
- Spinal Manipulation
- Exercise & PT
Low back sprain/strain pharm Tx
- NSAIDS
- APAP (limited utility)
- Muscle relaxers
- Opiates (limited utility)
Sciatica nerve root L4 involvement suggested by…
- weak quadriceps extension
- positive squat & rise test
- diminished knee-jerk reflex
Sciatica nerve root L5 involvement suggested by…
- weak dorsiflexion of great toe & foot
- impaired heel walking, foot drop
Sciatica nerve root S1 involvement suggested by…
- weak plantar flexion of great toe & foot
- impaired toe walking
- diminished ankle-jerk reflex
Sciatica Dx
- Further dx testing recommended if radicular pain & any of the following:
- incapacitating pain > 2 wks
- advancing neurologic symptoms
- no symptom improvement after 6 wks of conservative tx (reassurance, edu, analgesics, heat, activity, exercise, etc)
- MRI is the test of choice
Sciatica Conservative Tx
Conservative management:
- Heat
- Exercise as tolerated
- NSAIDS
- Muscle relaxers
- Opiates (lowest effective dose, 2 wks max)
- Epidural injections
Sciatica Surg referral if…
- progressive or moderately severe neuromotor deficit, such as foot drop or functional muscle weakness
- persistent neuromotor deficit after 4-6 wks of conservative tx
- uncontrolled radicular pain w/ defined lesion on imaging