MSK Flashcards
Acute LBP 1st step?
Early mobilization & NSAIDs & muscle relaxants
LBP red flags
Neuromotor deficit, fever, >6wks, loss of bowel/bladder, CA, steroid use, >70
Fever, vertebral tenderness, IVDU + LBP dx
Osteomyelitis, septic discitis, abscess
Causes of spinal stenosis
Degen arthritis, spondylo, spina bifida, myelomeningocele
LBP, leg pain/weakness, psuedoclaudication, pain dec when bending forward, squatting, sitting
Spinal stenosis –> NSIADs, PT, epidural steroids
AcuteB/L pain after lifting, bending, coughing –> anterior abdomen
Compression fx –> X-ray
LBP radiating down thigh to toe, w/ straightleg raise and CL leg raise imaging, WORSE w/ cough, defecation
Disc herniation = no imaging, only >1mo –> MRI
Leg pain worse w/ standing, better lying down, normal pulses, neuro exam
Spinal stenosis –> MRI
1 cause of spinal stenosis
DJD
13 y/o girl, SOB, + Adam’s test
Scoliosis –> XR –> BRACE
Young male w/ morning stiffness, better w/ exercise, tender SI, heels, tibial tuberosities (enthesitis)
Ankylosing spondylitis –> XR SI joints, anterior uveitis
Diseases assoc w/ carpal tunnel
RA, sarcoid, amyloidosis, HYPOTHYROID (B/L, severe)
Periarticular osteopenia, joint margin erosions, stiffness >30min, WBC 2000-50000, warm
RA –> MTX, NSAIDs, steroids + test for HCV, HBV, TB –> + hydroxychloroquine
RA pts at increased risk of developing ?
Osteoporosis
Knee pain, bone spurs, no warmth, worse w/ activity, BMI 36 - best LT improvement tx?
OA = Weightloss
Older, morning stiffness <30min, worse w/ exercise, cool, crepitus, dec and painful ROM
OA –> acetaminophen
Punched out erosions of cortical bone (Rat bite lesion), WBC 2000-50000, warm
Gouty arthritis–> indomethacin, colchicine for acute & allopurinol, probenecid chronic
Asymmetric polyarthritis, skin rash, normal joint space w/ soft tissure swelling, WBC >50000
Septic arthritis
Acute onset painful, swollen joint, limited ROM, WBC 50,000-150,000, prosthetic joint
Septic arthritis = SA, strep #2
Nail pitting, skin plaques, morning stiffness for several hrs, dactylitis of DIP (sausage fingers)
Psoriatic arthritis –> NSAIDs, MTX - NO steroids
Spinous process tenderness, IVDU or sickle cell, normal WBC, high platelets, fever
Osteomyelitis = SA –> cultures, ESR, x-ray –> Inc ESR w/ normal XR = MRI
Arthritis, conjunctivitis, urethritis bug
Chlamydia
Acute onset symmetric arthritis, MCP, PIP, wrist ankle, contact with kids, past fatigue, diarrhea, stiff 15min
Parvovirus B19 - anti-B19 IgM Ab
Joint pain, recent urethral discharge, many PMNs but no organisms in joint, mouth ulcers
Reactive arthritis –> NSAIDs
Acute polyarticular, symmetric, swelling, daycare worker, fever resolves in <2mo, + /-RF, ANA
Viral arthritis - Parvo, Hepatitis, HIV, mumps, rubella
Rusty nail osteomyelitis bug adult
PA –> quinolone
Carpal tunnel pathological accumulation ?
Matrix substances
Dec sensation 1st 3 fingers, numbness, tingling, thenar waisting, worse w/ hyperflexion of hand
Carpal tunnel –> NSAIDs, splint, steroids, nerve velocity –> surgery
Mom’s carrying baby, prolonged thumb extension, pain, Finklestein’s test
Dequervain’s –> NSAIDs, spica splint, steroids
Torn ulnar collateral lig, forced thumb hyperextension, skiing
Gamekeeper’s thumb –> casting
Torn flexor tendon, unable to flex DIP
Jersey Finger –> splinting
Torn extensor tendon, unable to extend finger, Volleyball
Mallet Finger –> splinting
Unable to flex ONLY middle finger –> pop if extended
Trigger Finger –> steroids
etOH, Scandinavian men, palpable nodules
Duputyren’s –> surgery
Abscess of pulp of nail, extremely tender, penetrating injury, fever, throbbing pain
Felon –> I&D
Colles fx tx
Closed reduction & long arm cast
Protection for nightstick, fx proximal ulna, anterior radial head dislocation
Monteggia fx
Galeazzi if radial fx –> ORIF
FOOSH, wrist pain in snuff box, non-displaced fx
Scaphoid fx –> thumb spica splint; ORIF if angulated or displaced
Punched a wall, tender 4th, 5th digits
Metacarpal neck fx –> closed reduction + ulnar gutter splint OR Kirschner wire
1 fx in kids
Supracondylar humeral fx
FOOSH, inc pain despite meds, radial pulse intact, sensation intact
Supracondylar humeral fx –> compartment syndrome
Injury w/ supracondylar fx
Brachial artery –> no radial pulse
Crepitus, upper body fat accumulation, asymmetric moro reflex
Clavicular fx = DM mom –> dystocia, vacuum forceps
Tx for neonatal clavicular fx
Reassurance and gentle handling
Dec appetite, neck swelling, neck turned to left, resists flexion
Torticollis –> XR to r/o cervical spine fx, dislocation
Throwing sports, pain, crepitus, dec supination/pronation
Panner disease (osteochondrosis of captellum)
Erb-duchenne palsy - + grasp reflex, C5,6
Reassurance - 80% resolve 3-6mo
Supinated, wrist extended, MCP extended, ICP flexed, IL Horner syndrome, (-) grasp
Klumpke palsy = C8, T1 traction –> PT, usually resolves
Hold arm close to body, rotated outward, numb deltoid
Anterior shoulder dislocation (#1) –> XR
Block shot (Abduction, ER) –> pain, ER, no IR, prominent acromion
Anterior shoulder dislocation (#1) –> XR, Axillary nerve
Electrical burn, seizure, hold arm close to body, IR
Posterior shoulder dislocation –> axillary or scapular XR
Nerve injury w/ middle oblique or distal 3rd of humerus fx
Radial –> surgery on if paralysis develops
Mom pulled kids arm –> held in pronation, not moving
Nursemaid’s elbow –> passive flexion + supination
Newborn, Clunk/Click w/ Ortalani or Barlow, uneven gluteal folds
Congenital hip dysplasia –> US –> Pavlik harness
Asymmetric inguinal folds, soft-click, leg-length diff next step
Hip US <6mo otherwise XR
Developmental dysplasia of hip tx <6mo
Pavlik harness = abduction + flexion
7 y/o PainLESS limp, anterior thigh pain, AVN
Legg-Calves Perthes –> XR –> Cast
7 y/o boy, insidious limp, previous fever, pain >1mo, limited IR & Abduction
Legg-Calve-Perthes –> XR –> Cast, splint, surgery, limit weight
10 y/o, growth spurt, pain w/ hip movement, pain with IR, holding leg in ER
SCFE –> frog-legged XR –> immediate screw fixation
13 y/o w/ limp, insidious KNEE pain, obese adolescent
Slipped capital femoral epiphysis
2-3 y/o Fever, acute joint pain, NO weight bearing, hx of cellulitis, >100,000WBC, 90% PMNs
Septic arthritis –> surgical drainage/arthrocentesis, Vanco
Fever + severe localized bone pain
Osteomyelitis –> MRI and abx
2-6 y/o, painFUL limp, normal ESR, WBC
Transient synovitis –> B/L hip XR –> rest & NSAIDs
7 y/o, limp, previous URI <1mo, hip flexed, abducted, ER
Transient synovitis
14 y/o A.A male wks of limping, hx severe abd pain, Hct 22%, restricted ROM, tender
Sickle cell –> osteonecrosis of hip
Head on car collision, knees hit dashboard, hip pain
Posterior hip dislocation –> emergent reduction
13 y/o knee pain + swelling, worse after basketball
Osgood-Schlater = traction apophysitis –> work through or rest + cast