Musculoskeletal/Rheumatologic Flashcards
Indications to aspirate a bursa
- Rule out INFECTION
2. Aid in diagnosis of GOUT (or other microcrystalline disorder)
Sprain vs Strain
Sprain = Ligaments Strain = Tendons (s"T"rain - "T"endon)
Untreated wrist strain
“SLAC” wrist: Scapho-Lunate Advanced Collapse
Impingement tests for shoulder
Neer
Hawkins
Most common injury of the wrist
Colle’s Fracture
Rotator Cuff Muscles
SItS:
- Supraspinatus
- Infraspinatus
- Teres minor
- Subscapularis
Most commonly injured rotator cuff mm
Supraspinatus
MC cause of shoulder pain >40
Rotator cuff TEAR
Shoulder pain <40
Rotator cuff TENDINITIS
Test for rotator cuff
Drop arm test
Distinguishing rotator cuff tear from tendinitis
Lidocaine injection (improves tendinitis)
PASSIVE ROM limited
Adhesive capsulitis
MC demographic for adhesive capsulitis
Women and Diabetics
“Tennis elbow”
Lateral epicondylitis
“Golfer’s (baseball) elbow”
Medial epicondylitis
Most common overuse injury of elbow
Lateral epicondylitis
Which muscles attach to lateral epicondyle
EXTENSOR muscles
Which muscles attach to medial epicondyle
FLEXOR muscles
Treatment for lateral epicondylitis
- Rest (at least 6 weeks), ice, NSAIDs
- Counter force strap
- Steroid injection +/- surgery
Red, swollen, painful elbow with PRESERVED ROM
Olecranon bursitis
Cause of INFECTIOUS olecranon bursitis
S. aureus
Small, soft, fluid-filled painLESS mass typically at the wrist
Ganglion cyst
Treatment for painful/disabling ganglion cyst
Aspiration +/- surgery
Most common mass/lump of hand
Ganglion cyst
- 30-50 YO Woman with children +/- diabetic
- c/o pain/tenderness near base of thumb radiating up the forearm
DeQuervain’s Tenosynovitis
Most common tendonitis of the wrist
DeQuervain’s
Test for DeQuervain’s
Finkelstein
1st line treatment for DeQuervain’s
Brace/thumb splint and NSAIDs
+/- cortisone injection/surgery
- Paresthesias of the 1st, 2nd, 3rd, and lateral 4th digit
- Thenar atrophy
Carpal tunnel syndrome
Carpal tunnel nerve
Median
Tests for carpal tunnel
- Phalen’s sign
- Tinel’s sign
- Others: Durkan’s, Flick
Phalen’s sign
Reproduction of carpal tunnel symptoms with wrist hyperflexion
Tinel’s sign
Reproduction of carpal tunnel symptoms with percussion over carpal tunnel
Treatment for carpal tunnel
VOLAR SPLINT in neutral position
NSAIDs
+/- surgery (99% curative)
Most common mononeuropathy
Carpal Tunnel Syndrome
Sprain (or tear) of the ulnar collateral ligament of the thumb
Gamekeeper’s Thumb
Stenner lesion
Slippage of the UCL associated with Gamekeeper’s Thumb
ABSOLUTE indication for surgery
Most common shoulder dislocation
Anterior
Nerve involved with shoulder dislocation
Axillary nerve: check deltoid sensation
Management of shoulder dislocation
Manual reduction
MOI Scapula Fx
Direct VIOLENT trauma
Will likely have other injuries/fx
Management of scapula fx
Immobilization with sling and swathe
Common elbow fx in children
Supracondylar Fracture
Artery that may be damaged with supracondylar fx
Brachial –> Check radial pulses!!!
X-ray findings of supracondylar fx
Posterior sail sign
Anterior humeral line will NOT bisect the capitate
“Dinner fork deformity”
Colles Fracture
POSTERIOR displacement of the wrist
Treatment for colles fx
- Nondisplaced: casting alone
- Slight displacement: Closed reduction + casting
- A lot of displacement: ORIF + casting
Opposite of colles fx
Smith Fracture
MOI: Fall on back of hand
Shoulder slumped downward, forward and inward
Clavicle Fracture
Management of clavicle fx
Figure 8 dressing
Common arm fx of elderly pt
Humeral SHAFT fx
Nerve damaged with humeral shaft fx
Radial nerve
Radial nerve damage findings
Wrist drop
Displacement of fat bad and elbow effusion on xray
Radial head fx
Pain in the anatomical snuffbox
Scaphoid Fx
X-ray findings of scaphoid fx
Often negative (repeat in 10-14 days)
Fx of the distal 5th metacarpal
Boxer’s fracture
MC ligament injured in ankle sprain
Anterior talofibular ligament (ATFL)
Name of criteria for imaging on ankle sprains
Ottawa Rules
Ottawa Rules
- ANKLE imaging if tenderness in MALLEOLAR region
- FOOT imaging if tenderness in MID-FOOT region
- Image BOTH if unable to bear weight for at least 4 steps
Ankle Sprain Classifications
Grade 1 - minimal tenderness/swelling; normal weight bearing
Grade 2 - moderate tenderness/swelling, decreased ROM; +/- instability
Grade 3 - significant tenderness/swelling, INSTABILITY
Grade 1 ankle sprain management
Weight bear as tolerated
PT
Grade 2 ankle sprain management
Immobilize with air splint
PT
Grade 3 ankle sprain management
Immobilize
PT
Possible SURGICAL reconstruction
Most common knee injury
Meniscal injuries
MC meniscus injury
Medial meniscus
Meniscus MOI
Excessive ROTATIONAL force
Meniscus special tests
McMurray
Apley
Fractures specific to peds population
Bowing
Greenstick
Classifying pediatric growth plate fxs
Salter-Harris
Salter-Harris classifications
I - (S)lipped II - (A)bove III - (L)ower IV - (T)hrough V - (ER)asure - crush
Metaphysis vs Epiphysis vs Diaphysis
(M)etaphysis = (M)iddle (E)piphysis = (E)nd Diaphysis = Body/Shaft
Population for hip fx
Elderly females
Hip fx at risk of avascular necrosis
INTRAcapsular - affects blood supply to femoral head
Extracapsular hip fx treatment
Internal fixation
Intracapsular hip fx treatment
Hemiarthroplasty due to high risk of avascular necrosis
Internal fixation if non-displaced
Hemarthrosis with fat globules (knee aspiration)
Knee Fracture (patella/tibial plateau)
Obese male 12-16 YO c/o:
Progressive limp and knee pain
Knee turned (unable to internally rotate hip)
Slipped Capital Femoral Epiphysis
Scoop of ice cream slipping off ice cream
Slipped capital femoral epiphysis
SCFE management
Orthopedic EMERGENCY - Surgical repair
MC cause of heel pain
Plantar fasciitis
Pain with first steps in the morning that improves
Plantar fasciitis
Fractures associated with child abuse
- Metaphyseal corner fx
- Posterior rib fx
- LE fx of non-ambulatory child
- Multiple fx in various stages of healing
- Sternal or scapular fx without high impact mechanism
- Any fx in child <1 YO
- Spinous process fx
MC complications of fx
DVT or PE
Tenderness over the tibial tuberosity
Osgood-Schlatter Disease
Male age 10-15 c/o:
- Anterior knee pain worse with kneeling, jumping, stairs
- Relieved by rest
- Normal x-ray
Osgood-Schlatter Disease
Osgood-Schlatter Disease treatment
Rest & NSAIDs
Young child presenting with:
-Conjunctivitis, rash, adenopathy, strawberry tongue, hand/feet edema, high fever (>5 days)
Kawasaki Disease
MC cause of pediatric acquired heart disease
Kawasaki Disease
Cardiac complication of Kawasaki Disease
Coronary Artery Aneurysm
Kawasaki Mnemonic
CRASH and burn: (C)onjunctivitis (R)ash (A)denopathy (S)trawberry tongue (H)and/feet edema \+ Fever (>5 days)
Medium-sized artery inflammation
Kawaski Disease
Treatment for Kawasaki
IVIG (lowers risk of coronary artery complications)
Aspirin (continued low dose for months after)
MC cause of costochondritis
Idiopathic
Small vessel vasculitis caused by deposition of IgA
Henoch-Schonlein Purpura
Child 4-12 YO presenting following URI with:
- Arthritis
- Palpable purpura
- GI sxs
HSP
Complications of HSP
Nephropathy
Intussusception
Treatment for HSP
Supportive
MC fx associated with osteoporosis
Vertebral body compression fx
Screening test for osteoporosis
DEXA
When to screen for osteoporosis
Average risk: Women >65 YO
Screen younger with risk factors
If osteopenia (-1.0 to -2.5), screen again in 1-5 years
Osteoporosis diagnosis
T-score < -2.5
Osteoporosis treatment
- Bisphosphonates (Alendronate, resideronate, ibandronate)
- Vitamin D: 800-1000 IU daily
- Calcium: 500-600 mg BID
Important Bisphosphonate instuctions
Take on EMPTY stomach and
Sitting UPRIGHT (remain upright for 30 min)
HYPOcalcemia
Osteonecrosis of the jaw in cancer patients
Chronic tendon thickening with localized tendon pain
no inflammation
Overuse syndrome
Disruption or laceration of the extensor tendon at the DIP
Mallet Finger
Distal radial shaft fx with
Associated distal radioulnar joint dislocation
Galeazzi Fracture
Fracture of proximal 1/3 of ulna
+ Dislocation of radial head
Monteggia Fracture
5th metatarsal transverse fx (proximal)
Jones Fracture
Midfoot fracture of metatarsal bones
Lisfranc Fracture
Lisfranc Fx treatment
ORIF
Stress fracture of pars interarticularis (usually L5)
Spondylolysis
Scotty Dog with collar (lumbar x-ray)
Spondylolysis
MC location of Gout
First MTP (Podagra)
MC Gout crystals
Uric Acid
Gout light microscopy
Needle-shaped
Negative birefringence
Acute gout treatment
NSAIDs (indomethacin)
Chronic gout treatment
Allopurinol
Colchicine
Gout triggers
Red meats, alcohol
Meds: Thiazide and Loop Diuretics
MC location for pseudogout
Knee
Pseudogout light microscopy
Positively birefringent
Prism (rhomboid) shaped crystals
MC pseudogout crystal
Calcium pyrophosphate crystals
Pseudogout treatment
NSAIDs
Morning stiffness lasting >30 min
RA
Ulnar deviation of MCP
RA
Associated with Baker’s cyst,
Swan neck deformity,
Boutonniere deformity
RA
Symmetrical bone erosions and joint space narrowing
RA
RA labs
RF
ESR
CRP
(Consider PMR if +ESR, +CRP, -RF)
RA treatment
NSAIDs
Glucocorticoids
DMARDS (Methotrexate)
TNF Inhibitor
Affects MCP and PIP joints
RA
Widespread muscle pain >3 months
PE shows tenderness at >9/18 trigger points
Labs are normal
Fibromyalgia
Fibromyalgia treatment
Education
Antidepressants
NO opioids
Proximal WEAKNESS of the skeletal muscles
Polymyositis
Patient presenting with insidious onset of muscle weakness
Reports difficulty getting up from chair, muscle atrophy
Polymyositis
Polymyositis Treatment
HIGH dose steroid taper
DMARDS if unresponsive to steroids
Pt with hx of lupus
c/o REPEATED SPONTANEOUS ABORTIONS
Antiphospholipid Antibody Syndrome
Antiphospholipid Antibody Syndrome Lab Finding
Thrombocytopenia
Treatment of antiphospholipid antibody syndrome
Anticoagulation
Malar rash
Photosensitivity
Arthritis
Hemolytic anemia
SLE
SLE antibodies
Anti-dsDNA: High specificity, poor prognosis
Anti-Smith: High specificity, not prognostic
ANA: High sensitivity, non-specific
Drugs that induce SLE
HIPPS:
- Hydralazine
- Isonazid
- Procainamide
- Phenytoin
- Sulfonamides
Drug induced SLE antibodies
Antihistone
SLE treatment
NSAIDs
Steroids
Immunosuppressants
HYDROXYCHLOROQUINE
Disease of excessive collagen deposition
Scleroderma
Scleroderma manifestations
CREST + Pulmonary fibrosis/HTN, Renal artery stenosis, GI dysmotility
CREST Syndrome
Calcinosis Raynaud's Esophageal dysmotility Sclerodactyly Telangiectasias
Scleroderma antibodies
Anti-SCL-70 (systemic only)
Anti-centromere
ANA
CREST antibodies
Anti-centromere
ANA
Pain/stiffness in shoulders and hips w/out weakness
PMR
What is PMR associated with
Temporal (giant cell) arteritis
PMR labs
(+)ESR/CRP
(-)RF
PMR treatment
Steroids (prednisone)
Middle aged female presenting with:
dry eyes, dry mouth, parotid enlargement
Sjogren’s
What rheum conditioin is Sjogren’s associated with
RA
What cancer is Sjogren’s associated with
B-Cell Lymphoma (44x the risk!!!)
Sjogren’s antibodies
Anti-Ro
Anti-La
ANA, RF
Stiffness that is worse w/ activity, improved with rest
OA
Joints affected by OA
DIP, CMC of thumbs
Osteophytes on x-ray
OA
OA labs
Normal ESR & RF
Heberden and Bouchard nodes
OA
Heberden VS Bouchard nodes
Heberden - DIP
Bouchard - PIP
MC cause of septic arthritis <35 YO
Gonorrhea
MC cause of septic arthritis overall
S. aureus
Patient presenting with fever, joint pain, dec ROM
Septic arthritis
MC site for septic arthritis
Knee
Septic arthritis synovial fluid analysis
WBC >50,000 with >75% PMNs
Yellow, purulent
Variable viscosity
HLA-B27
Ankylosing Spondylitis
Reactive Arthritis
Low back pain that is worse in the morning, improves with exercise
Ankylosing spondylitis
Bamboo spine
Ankylosing spondylitis
Ankylosing spondylitis labs
(+) ESR
(+) HLA-B27
Ankylosing spondylitis treatment
NSAIDs
Methotrexate
PT
Spinal fusion
Pt with recent GI or chlamydia infection
c/o ASYMMETRIC arthritis, conjunctivitis, urethritis
Reactive Arthritis (Reiter’s)
Reactive arthritis labs
HLA-B27
Treatment for reactive arthritis
NSAIDs
MC primary malignancy of the bone
Osteosarcoma
Sunburst x-ray pattern
Osteosarcoma
MC location for osteosarcoma
LONG bones: Femur > tibia > humerus
MC cause of avascular necrosis
Corticosteroids
MC site for avascular necrosis
Femoral head
Hypercalcemia
Renal insufficiency
Anemia
Bone lesions/Back pain
Multiple Myeloma
Lytic bone lesions
Multiple Myeloma
Multiple Myeloma mnemonic
CRAB: hyperCalcemia Renal insufficiency Anemia Bone lesions/Back pain
Monoclonal antibody spike (M spike)
Multiple myeloma
Bence-Jones proteins
Multiple myeloma
Rouleaux formations
Multiple myeloma
Proximal myalgias and weakness
Skin ulcers
Nephritis
Mesenteric ischemia
Polyarteritis nodosa
MC type of ischial tuberosity avulsion
Pelvic avulsion fracture
Brittle bone disease
Osteogenesis imperfecta
Infant with hearing loss, easy bruisability, and multiple fractures
Osteogenesis imperfecta
Blue sclera Increased laxity of joints Short stature Scoliosis Basilar skull deformities
Osteogenesis imperfecta
Osteogenesis imperfecta inheritance pattern
Autosomal dominant mutation of the collagen
Fleck sign
Avulsion fx of the medial aspect of the base of the 2nd metatarsal
Pathognomonic for Lisfranc fx