MSK Flashcards
Thigh, shoulder, upper arm pain and weakness. + purple rash on eyelids + skin rash
Dermatomyositis
If no skin involvement = polymyositis
Skin lesions in dermatomyocytis
Gottron lesions
Antibodies and diagnostic investigations in dermatomyositis
AntiJo
AntiMi2
ANA
CK
Muscle biopsy
First line management of RA
Methotrexate
Sulfasalazine
TNF inhibitor
Scoring RA
DAS28
Appearance of Ewing Sarcoma
Pathological fx
Lytic and moth eaten
Onion skinning periosteum
5y survival 5-10%
Appearance giant cell bone tumour
Pain and swelling Radiolucent Extends into subchondral plate Soap bubble appearance Pathological fx Met to lung
XR Ps Arthritis
Pencil in cup
Plantar spur
Asym
Sacroilitis
Ank spond XR
Sacroilititis- fusion. Subchondral erosions and sclerosis. Bamboo spine. Squaring of lumbar vertebrae.
Ank spond Sx
Reduced chest expansion Reduced lateral flexion Reduced forward flexion (Schobers test) HLAb27 ie anterior uveitis Apical fibrosis AV nodal block
As of Ank Spons
AV nodal block Aortic regurgitation Amyloidosis Apical fibrosis Anterior uveitis Achilles tendinitis And cauda equine
Antiphospholipid syndrome antibody
Anti cardiolipin
De quervains tendons
APL and EPB
Median nerve supplies
LOAF Lateral lumbricals - FDP Opponens policis APB FPB
Trigger finger pulley
A1
Common site for hand ganglion
Finger pulp
Test median nerve motor innervation
Thumb abduction - apply resistance
Risk factors for carpal tunnel
RA hypothyroid Acromegaly Pregnancy Diabetes
Components of deep posterior compartment of leg
FHL
FDL
Tib posterior
Sensation supply to sole of foot
To beak nerve
Hammer toe deformity
Flexion at DIP
How many bones in foot
26
Greatest range of foot movement is at what joint
1st MTP
Posturing post hip fx
Shortened and externally rotated
Unstable ankle fx
2+ malleoli or displaced joint
