MSK Flashcards
Temporal arteritis - immediate treatment ?
Oral prednisolone
unless vision is affected.
then prescribe IV methylprednisolone
Discitis - causative organism ?
Staph. aureus
Sensory innervation to dorsum of foot + innervates tibialis anterior muscle. Which nerve root ?
L4-L5
(Deep fibular nerve - damage causes foot drop)
Back pain which radiates to the thigh and/or calves
Walking uphill is easier
Spinal stenosis
Spinal stenosis risk factors
Older age
Previous back surgery
Manual labour
Knee jerk reflex is supplied by what nerve roots ?
L3 + L4
What muscle is responsible for hip flexion?
Iliopsoas muscle
Spinal deformity in ankylosing spondylitis
Thoracic kyphosis
Azathioprine interacts with what other drug to cause bone marrow suppression ?
Azathioprine + Allopurinol
Azathioprine + Allopurinol causes … ?
Bone marrow suppression
Dermatomyositis rash
Heliotrope rash
SLE rash
Malar rash
What does a heliotrope rash look like?
Named after the heliotrope flower, which has purple petals.
Bilateral lilac discolouration of the eyelids (particularly the upper eyelids)
What does a malar rash look like?
Butterfly-shaped rash over cheeks and nose that spares the nasolabial folds
Osteomyelitis investigation
MRI
Osteomyelitis causative organism
Staph. aureus
Rule-out test for SLE
ANA
Anti-Ro and Anti-La antibodies =
Sjogren’s syndrome
Anti-Jo-1 antibody =
Dermatomyositis/Polymyositis
Skin changes in dermatomyositis
Heliotrope rash
Gottron’s papules (pathognomonic)
Causes of avascular necrosis
Long-term steroid use
Chemotherapy
Alcohol excess
Trauma
Ankylosing spondylitis - findings on plain radiography
Syndesmophytes - bony growths originating from inside a spinal ligament or of the annulus fibrosus.
autosomal dominant pathogenic variant in the FBN1 (fibrillin) gene = what condition ?
Marfan’s syndrome
Sensory loss of posterolateral aspect of leg and lateral aspect of foot, weakness in plantar flexion of foot, reduced ankle reflex, positive sciatic nerve stretch test.
Which nerve root?
S1