Conventional Radiography in Transient Synovitis of the Hip in Children

Abstract

Conventional radiography was performed at diagnosis and at follow-up 5 to 9 months later in 70 children with transient synovitis of the hip. Twenty-four of the patients also had CT examination at diagnosis. The cartilaginous and osseous reaction in the conventional antero-posterior radiographs was studied as was the relation between the radiographic and CT findings concerning fat planes, joint effusion, and position of the hip joint. At diagnosis there was significant increase in the medial joint space and at follow-up examination there was significant increase in medial and cranial joint space, metaphyseal width and acetabular roof width. There was a correlation of a bulging lateral 'capsular fat plane' to the position of abduction in the affected hip which explains the asymmetry in the lateral fat plane observed in these patients.

Transient synovitis of the hip in the child: Increased levels of proteoglycan fragments in joint fluid

“…Synovial fluid was collected following aspiration of 18 hips with the clinical and sonographic diag-nosis of transient synovitis of the hip (TS). Thirteen were boys and 5 were girls; the mean age was 6 (range [3][4][5][6][7][8][9][10][11][12][13][14] years. The mean duration of symptoms at the time of aspiration was 3.4 (range 1-21) days.…”

“…The synovial effusion and the resulting increase in intracapsular pressure have been suggested as etiologic factors in Legg-CalvC-Perthes' disease (LCPD) with ischemia and osteonecrosis of the femoral capital epiphysis (22). In other cases, enlargement of the hip joint, coxa magna, has been shown to result from transient synovitis (6,4). The etiology of transient synovitis is unknown, but viral infection, hypersensitivity or trauma have been implicated (1,10,21).…”

Bilateral Trigger Finger in a 7-Year-Old After a Viral Infection: Case Report

“…Radiographs do not demonstrate bony abnormalities but may show increased joint space and soft tissue swelling. 15 When ultrasonography has been performed on an affected and an unaffected hip, the unaffected hip may demonstrate increased joint space in 25% of cases as well. 16 Interestingly, arthritis after viral infections (in particular parvovirus B19) is often symmetrical and may affect the hands.…”