Transient synovitis

Question 1

Define transient synovitis

Answer 1

Self-limiting condition characterised by the temporary inflammation of the synovial lining of the hip joint.
This often results in a limp in affected children

Question 2

What is the relevant epidemiology of transient synovitis?

Answer 2

Children between 3-11yrs
Twice as common in males

Question 3

What is the key aetiology of transient synovitis?

Answer 3

Post viral infection -> upper RTI -> 1 to 2 w prior

Question 4

What are the key signs and symptoms of transient synovitis?

Answer 4

Acute onset of limp - avoidance fo weight bearing
Pain in the hip or referred knee pain
Mild to absent fever
History of preceding viral illness

Question 5

What investigations should be done when transient synovitis is a differential?

Answer 5

Bloods - raised wbc and inflammatory markers in septic arthirits
Imaging - US of the joint can show effusion in both
Joint aspirate - if unable to rule out septic arthritis - transient synovitis would have an sbence of bacteria

Question 6

What is the key management of transient synovitis?

Answer 6

Supportive - rest, analgesic and physiotherapy

Question 7

What is the prognosis of transient synovitis?

Answer 7

Generally resolves in 7days with minimal risk of long-term damage to the joint