MSK Flashcards
(139 cards)
What indicators are there of an inflammatory condition?
- Morning stiffnes > 30 mins - Pain after rest - Systemic symptoms - Night time pain - Acute/ subacute presentation
What indicators are there of a non-inflammatory condition?
- Pain towards end of day - Pain better at night - Long standing/ chronic nature
What steps are there in interpretation of a joint X-ray?
Details Site Type of fracture - transverse, oblique, spiral Simple of Comminute Displaced Angulated Consistency of bone
What indicators are there of Oesteoathritis on joint X-rays?
LOSS Loss of joint space Osteophytes Subchondral cysts Subchondral sclerosis
What would a joint aspiration show if a patient had gout?
- needle like, negatively bifringent in polar light crystals of monosodium urate
What would a joint aspiration show if a patient had pseudogout?
Rhomboid and parallelogram shaped crystals which are positvely bifringent to polarised light and made of calcium pyrophosphate crystals
Apart from Pseudo/Gout, what else can a joint aspiration be used for?
Gram stain and culture for septic arthritis
What antibodies are used for rheumatoid arthritis?
Rheumatoid factor Anti-CCP (more sensitive)
What might Anti-ds DNA suggest?
SLE
What anti-bodies indicate sjogrens disease?
Anti- LA Anti- Ro Also present in SLE
What auto-antibodies work in polymyositis dermatomyostitis?
Anti-Jo1 Anti-Mi2
What does anti Scl-70 indicate?
Systemic sclerosis
What ANCA is present in Granulomatosis and polyangitis?
c-ANCA
What ANCA is present in Churg-Strause?
This is Eosinophilic granulomatosis and polyangitis. p-ANCA is present
What is the True positive rate (Sensitivity)?
TP/(TP+FN) - ability of a test to rule in or detect the disease
What is the True negative rate (specificity)?
TN/(TN+FP) - ability of a test to rule out or exclude the disease
What should be considered when giving steroids?
PPI Vit D Biphosphonates
What side effects are there to steroids?
• Myopathy – muscle wasting • Osteonecrosis • HPA axis dysunction • DM, fluid retention, lipogenesis • Gastric ulcer • Hirtuism • Skin thinning • Catarcts • Increased cardiovascular risk
What DMARDs are there?
Aziothioprine Methotrexate Sulfalazine Hydrochloroquine Leflonomide
What is the definition of a pathological fracture?
A fracture in abnormal bone (metabolic, metastatic, infected, osteopenic or osteomalacia)
What principles are there for management of a fracture?
Reduce - approximate anatomically the broken tissues Immobilise - Casts, surgical stabilisation Rehabilitate - physio
What systemic factors can cause a delay in bone union?
poor blood supply like that of scaphoid, distal tibia, stability and infection
What local factors can cause a delay in bone union?
diet, DM, smoking (big time), HIV and medication (corticosteroids and NSAIDS)
What nerve palsy is associated with a Midshaft of the humerus fracture?
Radial nerve

