MSK Flashcards
Bony outgrowth with cartilagenous cap
Knee
Osteochondroma
Autosomal dominant
Most common
Excise
Intramedullary, metaphyseal tumour
Lucent/sclerotic
Long and small tublar bones
Enchondroma
failure of ossification at growth plate
Curretage to treat
Solitary unicystic growth
long bones
Fractures can occur
Curretage and bone graft
Possible stabilisation
Lucent
Multiloculated cyst in medulla
Pain and fractures
Aneurysmal bone cyst
Curretage and cement
Pain and fracture
lung mets
soap bubble appearance
Giant cell tumour
Translocation of 1 + 2
Excise and bone cement
Joint replacement
Widened bone thin cortices
Stress fractures
‘Shepherds crook deformity’
Fibrous dysplasia
Fault in g protein signalling leading to immature bone
treat with bisphosphonates, fixation and remove it
Pain worse at night and reieved by NSAIDs
X ray with sclerotic halo
Osteoid osteoma
leave alone/ablate/ en bloc excision
Lytic lesion
History of subacute osteomyelitis
Brodies abscess
Lytic lesions
history of hyperparathyroidism
Brown tumours
Most common primary bone tumour
Osteosarcoma
Treat with chemotherapy
Herringbone pattern
Abnormal bone pathology
Young
Fibrosarcoma
Fever raised ESR Swelling Onion skin pattern Small blue round cell tumours
Ewings sarcoma
11:22 translocation on Ch22
Give chemo and raddiotherapy
what test shows multiple myeloma
Bence Jones
Trat with chemo
Where do bone mets go?
Prostate (blastic) Breast (mixed) Kidney (lytic) Thryoid (lytic) Lungs (lytic)
Sagging rope sign
History of clotting
AVN
Precollapse: Drill to get blood flowing
Collapse: Replacement
Distinguish osteoporosis, osteomalacia and pagets
OP: >2.5 decrease in bone density and normal biochemistry
OM: <2.5 decrease, pseudofractures, low Ca2+ and PO
P: Raised ALP, thickened bone cortices
overcontracted muscle
Anti K+ antibodies
Neuromyotonia
Anticonvulsants
Muscle weakness due to Ca2+ antibodies
LE myasthenic syndrome
Anticholinesterases and K blockers
Progressive eye and muscle weakness
Anticholinesterases
Immunosuppressants
Joint pain
DIP and PIP
<1hr + worsens activity
LOSS on X ray
OA Lifestyle NSAIDS IA steroids Joint replacement
Joint pain PIP and MCP C1 C2 involvement stiffness >1hr and eases on activity Anti CCP and RF
RA Investigate with MRI 1. MTX + steroid 2. + SFZ/HCQ 3. + TNFi
Male
Reduced lordosis and increased kyphosis
Bamboo spine
Ank spond
Schober’s +ve
Nail changes
Psoriasis
‘pencil in cup’ X ray
Psoriatic arthritis
Arthritis and IBD features
Enteropathic
3 weeks after infection
Clear joint aspirate
Reactive arthritis
Butterfly rash Arthritis Systemic problems Anti-dsDNA Anti-sm C2/4 low
SLE
Dryness of mucosa
Ant-Ro/La
T cells on biopsy
Sjogrens
give pilocarpine for dryness
CREST syndrome
can be limited to distal skin or spread to trunk
Systemic sclerosis
Limited: centromere
Diffuse: anti-scl-70
Systemic symptoms
Anti-RNP
MCTD
Young stroke
Miscarriages
Prolonged APTT
Anticardiolpin
APLS
Anticoag
Muscle STIFFNESS
Shoulder and girdle
Spreads from one side to the other
Polymylagia rheumatica
Normal CK
Resposnds to low dose steroids
Steroids for GCA
40mg if no visual
60mg if yes
Muscle WEAKNESS 10x CK Anti-Jo SRP V shaped rash Gottrons papules Heliotrope rash
Myositis
Treatment:
40mg prednisilone
Immunosuppressants
> 50
polymyalgia rheumatica
GCA
<50s
Asian woman
Takayasu
‘String of beads’
Blood clots
Gi and renal inolvement
Pa
Neck stiffness that radiates to shoulders
Occurs over time
Cervical spondylosis
conservative
Dcompression if upper limb symptoms
Shooting dermatomal pain
Poor reflexes
Weakness
Cervical disc prolapse
do MRI
Conservative and surgery
Downs/RA patients
Abnormal neck movements
Upper MN signs
C spine instablity Flexion/extension Treatment: Collar if moderate Fusion if severe
RA, diabetes, CKD, colles fracture
altered sensation in thumb and radial fingers
Muscle wasting at thumb
worse at night
Carpal tunnel syndrome
Wrist splint
Steroids
Ulnar 2.5 fingers
Tinels test
Frontmants
Cubital tunnel
Decompress
Intervertebral discs are
2ndary catilagenous
Lumbar puncture is at
Post iliac crest L4, PSIS S2
Red flags for back pain
<20
>60 new onset
Constant severe pain
Systemic upset
Heavy lifting
Severe back pain on coughing
Neuropathic pain/weakness
Acute disc tear
Conservative
Surgery
Over 60
Claudicaton thats better on hill walking
Osteophytes on x ray
Spinal stenosis
Analgesia and physio
Back pain that worsens on activity
No neuro symptoms
Mechanical back pain
analgesia and physio
surgery if instable
Bruning pain in thigh and knee
Stretching knee recreates pain
crossover sign positive
Sciatica
Analgesia
Neuropathic meds
Surgery if severe
How is a crush fracture treated
Balloon vertebroplasty
Numb saddle area
Bilateral leg pain
Incontinence
Cauda equina syndrome
PR
MRI
Discectomy
frontal spinal fracture with ripped back
Chance
Distal radius fracture with volar displacement
Smiths
Bimalleolar fracture
Potts
Comprression fracture in osteoporosis
Wedge
Extreme trauma causing multiple fractures
Burst