Ortho differentials

Question 1

how do you categorise differentials for a painful joint

Answer 1

infection
iflammation
mechanical
malignancy

Question 2

infectious cause of painful joint

Answer 2

Septic arthritis

Reactive arthritis

Question 3

inflammatory cause of painful joint

Answer 3

RA, psoriatic arthritis, enteropathic arthritis
Gout, pseudogout
SLE

Question 4

Mechanical causes of a painful joint

Answer 4

Osteoarthritis
Trauma
hypermobility

Question 5

causes of hip fixed flexion deformity

Answer 5

Inflamm (OA, RA)
Post-traumatic (fibrosis, myotitis ossificans)
Post infectious