Musculoskeletal Conditions Flashcards
(4) axes on which to consider MSK conditions
duration (acute vs. chronic), origin (articular vs. non-articular), nature (inflammatory vs. non-inflammatory), distribution (localized vs. systemic)
OLDCARTS acronym for HPI
Onset, Location, Duration, Character, Aggravating/Alleviating, Radiation, Timing, Severity
Reserve imaging studies for cases with “red flags” or persistent symptoms longer than…..
4-6 weeks
MSK “red flags” (6)
radicular symptoms >4-6 weeks, increasing symptoms, osteomyelitis, cauda equina, disc herniation, epidural abscess
Your 1 week postpartum pt who received epidural anesthesia in labor calls clinic reporting low back pain. Suspect….
Epidural abscess
Radicular pain
radiating
Lifetime risk for osteoarthritis
~50%
Medical term for bone spurs
osteophytes
pathogenesis of OA (3)
loss of articular cartilage, thickening of the subchrondral bone, development of osteophytes
DIAGNOSE: Pt presents with joint pain and stiffness, swelling, crepitus, low-grade synovitis, and loss of mobility to one hand
osteoarthritis
Causes of secondary OA, generally (3)
mechanical (i.e., joint out of alignment), metabolic, endocrine
Common medication that is risk factor for OA
prednisone
Characteristics of OA
Slow insidious onset, affecting one or a few joints, pain is “achey” and poorly localized, morning stiffness lasts <30 minutes, pain is relieved by rest, there is NO systemic symptoms
Why is it important to assess risk for GI bleed in clients with OA?
NSAIDs is usual treatment, may require modification
Key differentiations between OA and RA (3)
OA = one or a few joints, morning stiffness <30 minutes, no systemic symptoms RA = multiple joints bilaterally, morning stiffness >30 minutes, systemic symptoms present
OA characteristics seen on radiographic imaging (5)
joint space narrowing, osteophyte formation, periarticular ossicles, subchondral bone cysts, altered shape of bone end
Heberden’s nodes are found at the …..
DIP joints of the hand
Bouchard’s nodes are found at the ….
PIP joints of the hand
Hopkins Pearl: True hip joint pain will ofetn be felt…
in the groin
Patient self-management of OA
physical activity is key, including ROM, aerobic and strength exercises. Weight-bearing exercise like running can put stress on the joints. Strengthening the muscles around the joint can help and develop stability in the joint. Proper body mechanics, aids and braces. Importance of rest and warm heat or cool ice pack. If limiting function, consider referral to PT or OT
Pharmacologic recommendation for OA in one or a small few joints
topical NSAIDs
OA patients with history of GI bleed should not be taking….
NSAIDs or a COX-2
Maximum dose of NSAIDs per day
2400mg in 24 hours
When might you refer your OA pt to a specialist (4)
severe or disabling, malalignment, instability, or bone spurs
Hopkin’s (2) things to remember about RA
it is a systemic disease, it has a variable course
Condition characterized as a symmetric, inflammatory, peripheral polyarthritis
rheumatoid arthritis
RA affects how many joints
3-5+
RA symptom duration
> 6 weeks
(3) possible disease courses of RA
monocyclic, polycyclic, progressive
monocyclic RA
only one episode that ends within 2-5 years of initial diagnosis. This may result from early diagnosis or aggressive treatment
polycyclic RA
levels of disease activity fluctuate over the course of the condition
progressive RA
continues to increase in severity over time and does not go away
Characteristics of RA
slow insidious onset with symmetric joint involvement, morning stiffness lasting several hours, pain, tenderness, warmth, and swelling with systemic symptoms
Systemic symptoms in RA (4)
fatigue, depression, malaise, anorexia
Diagnostic criteria for RA
persistent, symmetric polyarthritis lasting >3 months with the presence of systemic features
RA workup: comprehensive vs. focused visit?
comprehensive (complete history, extensive ROS)
Boutonniere deformity
tendons of the hand are shortened and drawn up
Lab test fairly specific to lupus
ANA (anti-nuclear antibody)
Lab work-up for RA
CBC (r/o anemia), CMP (LFTs, kidney function), ESR and CRP (inflammatory markers), ANA (r/o SLE), uric acid (r/o gout), RF and anti-CCP antibody (specific to RA)
DMARDS
disease modifying antirheumatic drugs
Gold standard for diagnosis of RA
intra-articular aspiration of synovial fluid
Primary care non-pharm treatment for RA
Recommend rest, splints to prevent deformities, regular exercise (warm water exercise particularly useful), occupational therapy referral can provide TENS units and parafin wax baths.
Primary care pharm-treatment for RA
NSAIDs or ASA. Beyond this, refer to a specialist for DMARDs, biologics, antimalarials, and low-dose steroids
Gout is a type of ______ arthritis
inflammatory
Primary gout
inborn error in the production of, or excretion of, uric acid. 90% male incidence. Majority of gout cases are primary
Secondary gout
gout due to other disorders that cause hyperuricemia through over production or impaired excretion
Gout is strongly associated with what other condition….
metabolic syndrome
Purine rich diet places someone at increased risk for…
gout
purine-rich food examples (6)
organ meats, anchovies, sardines, meat extracts, hard cheeses, red wine
DIAGNOSE: Sudden onset of intense pain in one joint with inflammation, redness, and the pain is not relieved by rest.
Gout
Characteristics of gout
sudden onset, intense pain, usually monoarticular, inflammation and erythema, pain peaks in 24-36 hours, not relieved by rest. Tophi may be seen with chronic gout
Medical term for crystal deposits in chronic gout
tophi
Most common joint affected by gout
big toe (first metatarsophalangeal joint)
Medical term for gout of the big toe
podogra
Hopkins Pearl: Monoarticular, sudden onset knee pain in sexually active pt, keep this rare complication on our radar….
gonhorrhea causing systemic infection of the knee
Gold standard test for diagnosing gout
synovial fluid exam for uric acid crystals
Lab workup for gout
Gold standard will be a synovial fluid exam for uric acid crystals. Otherwise, serum uric acid, CBC (WBCs), ESR, potentially an xray in chronic gout
An alcohol binge can precipitate this MSK condition….
gout
Avoid this common medication in gout
low dose ASA
Prophylactic pharm treatment for chronic gout
colchicine
Pharm management of acute gout
NSAIDs (loading dose, then 10-15 days), occasionally oral steroids
Most common etiology of both tendinitis and bursitis
overuse
DIAGNOSE: Pain with movement and ROM, with swelling, warmth, point tenderness with palpation, and erythema
Tendinitis or bursitis
Non pharm management of tendinitis
gentle exercise, support bracing (but not immobilization), ice. Ultrasound can also be palliative!
When would you get imaging in tendinitis?
Not necessary in mild cases, but get an MRI if you suspect tear or r/t traumatic injury, or if you’re treating it and its not improving