View source for Transitory synovitis of the hip

<section begin="orthopaedics" />* Transitory coxitis = transitory synovitis of the hip = irritable hip
** Epidemiology
*** Most common cause of acute hip pain in children 3 – 8 years
*** Boys > girls
** Etiology
*** Occurs without precipitating cause in most cases
*** May follow upper respiratory tract infections or trauma
** Pathology
*** Synovitis of the hip
** Clinical features
*** Almost always unilateral
*** After upper respiratory tract infections
**** This may give transitory coxitis a season appearance
*** Often recurs
*** Antalgic limp
*** Thigh/knee pain
*** Flexion contracture
*** Limited internal rotation
*** No fever
** Diagnosis
*** ESR, <abbr>CRP</abbr>, WBC slightly raised
*** US/MRI show hip joint effusion
*** X-ray shows nothing
** Treatment
*** The condition is self-limiting after a few weeks in most cases
*** Rest
*** NSAIDs
*** Joint fluid aspiration
**** This can also exclude septic arthritis, which may cause similar symptoms
** Complications
*** The pressure caused by the effusion can cause avascular necrosis of the femoral head
<section end="orthopaedics" />
[[Category:Orthopaedics]]
[[Category:Paediatrics]]