Pastest Flashcards
Most common cause of osteomyelitis in a patient with sickle cell?
Salmonella
staph aureus for everyone else
First line for carpal tunnel syndrome?
Corticosteroid injection
no role for NSAID
What is the commonest # of childhood?
Supracondylar # of the humerus
Often involve brachial artery compromise and involvement of median, radial or ulnar nerve
How are supracondylar # classified?
Garland classification
Type 1 = non displaced
Type 2 = angulated with intact posterior cortex
Type 3 = posterior displacement
Back pain worse on extension of the back?
Facet joint pain
Ottawa ankle rules
X-ray is only required if bony tenderness in the malleolar zone +
Inability to weight bear for 4 steps
Bony tenderness in distal tibia
Bony tenderness in distal fibula
What tests do patient need before starting hydroxychloroquine?
Ophthalmology exam due to risk of retinopathy
First line treatment for new RA?
Methotrexate + another DMARD e.g. leflunomide
+ a short dose of oral prednisolone to control acute flare
What does anti-Jo 1 antibodies in polymyositis mean?
Worse prognosis and increased risk of interstitial lung disease
Syringomeylia
Formation of a cystic cavity within the spinal cord
Commonest is with Arnold-chairi malformation
Typically affected the spinothalamic tract —>pain and sensory loss in the upper limbs
Feature of Brown - Sequard syndrome?
Hemisection of spinal cord e.g. stab injury Ipsilateral paralyses (pyramidal tract) and loss of proprioception and fine touch (dorsal column)
Pain and temperature loss is on the contralateral side (spinthalamic tract cross below the injury)
APTT will be increased in anti-phospholipid syndrome. Associated with anit-cardioplipi and lupus anti-coagulant antibodies. What are the features?
C - coagulation defects
L - livedo reticularis
O - obstetric loss
T - thrombocytopenia (low platelets)
1ST DVT = warfarin for 6 months
>1 = lifelong warfarin
Management of reactive arthritis?
NSAIDs- can’t pee, can’t see, can’t climb a tree
Which test is used to assess for hyper mobility?
Brighton score
Features of anti-synthetase syndrome?
Myositis
Cracked hands
Raynauds
Interstitial lung disease
Anti-jo 1
ESR and CK in polymyalgia rheumatica?
ESR is elevated
CK is normal (no true myositis)
Remember there is no true weakness - it is limited by pain
Most common eye complication of RA
Keratoconjunctiva sicca
Most likely bone tumour in middle age?
Chondrosarcoma
‘Popcorn calcification’ and axial skeleton
Distal radial # with volar angulation?
Smiths
Intra-articulate # of the base of the 1st MCP
Bennets
Bi-malleolar ankle fracture. Often after fall from height?
Potts #
Dislocation of the proximal radio-ulnar joint with ulnar #
Monteggia #
(usually occurs after fall on outstretched hand with forced pronation)
(PM)
Radial shaft # fracture with dislocation of the radio-ulnar joint
Galeazzi #
GD
Retinal haemorrhage after femoral #?
Fat embolism
Intra-arterial fat globules is also suggestive
What test is used to conform de quervains tenosynovitis?
Finklesteins test (put thumb in closed fist then extend wrist down)
What is de quervains tenosynovitis?
Inflammation of the sheath containing the extensor policis brevis and abductor policis longus
Treat with analgesia or steroid injection
Positive lachman test?
ACL rupture
Remember that PCL occurs due to hyperextension
The sciatic nerve divides into the tibial and commonest peroneal nerves. Features of common peroneal nerve damage?
Foot drop
Sensory loss over dorsum of foot
Weakness of dorsiflexion, foot eversion and extensor hallucis longus
Hills Sach lesion visible of x-ray
Anterior glenohemoral dislocation
Rim’s sign, light bulb sign. Trough sign…
All suggestive of a posterior shoulder dislocation
IVDU with back pain, fever and likes to lie on back with knees flexed?
Psorias abscess
What is the expected calcium and alk phos in pagets disease?
Calcium = Normal
Alk phos = high
Alk phos and calcium in osteomalacia?
Low calcium and phosphate
Alk phos is high
First line analgesia for managing low back pain?
NSAIDs such as naproxen
RF for DDH
- Female
- First born
- FH
- breech
- oligohydramnios
Teenager hit in knee with hockey stick. Knee is tense and swollen but no # on x-ray. Likely diagnosis?
Patellar disclocation
often spontaneously reduce