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Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_9 | Pages 15 - 15
1 Aug 2015
Bennet S Thomas S
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The unwell child with an acutely irritable hip poses a diagnostic dilemma. Recent studies indicate that pericapsular myositis may be at least as common as joint infection in the septic child. MRI might therefore be a critical first step to avoid unnecessary hip drainage surgery in the septic child with hip symptoms.

We reviewed our own experience with MR imaging in this setting.

We searched our PACS system to retrieve MRI scans performed for children with suspected hip sepsis from August 2008 to August 2014 using the following terms: hip, septic arthritis, osteomyelitis, mysositis, abscess, femur, acetabulum. 56 cases fulfilled inclusion criteria that included acute presentation with hip symptoms and 2 or more Kocher criteria for septic arthritis. Recent unsuccessful hip washout was not a contra-indication.

56 patients presented with acute infection around the hip. 47 (84%) had MRI scans before any surgical intervention and 9 (16%) had scans promptly following unsatisfactory hip washout with failure to improve.

20 (36%) were found to have pericapsular myositis. In this group, the infection commonly involved the iliopsoas (4), gluteal (4), piriformis (5) or obturator (7) muscles. 15 (27%) children had proximal femoral or acetabular osteomyelitis and 8 (14%) were diagnosed with septic arthritis. The 13 (23%) remaining scans did not show infection around the hip.

This study confirms a high rate of extracapsular foci in septic children presenting with hip irritability. Less than 20% had actual septic arthritis in this series. While drainage of a septic joint should never be delayed in the face of a large joint effusion with debris on US, there is a clear role for MRI scanning in the acute setting when the diagnosis is less certain.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXIV | Pages 3 - 3
1 May 2012
Hefny A Abdelsamie A Amin A
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Introduction. Septic arthritis of the hip in the newborn baby can result in severe long term sequelae in the form of dislocation of the hip, loss of movement and growth disturbance with leg length discrepancy. Reconstructive procedures for this difficult problem have not been satisfactory. Patient and methods. This series comprises eight patients with septic hip sequelae . All of them had old septic hip and leg length discrepancy ranging from 4 cm to 15 cm. all underwent hip stabilization by pelvic support osteotomy and simultaneous limb lengthening and angular deformities correction using the Ilizarov frame. The age at the operation range from 8 years to 19 years, with an average follow up 4 years. Results. The average of limb lengthening gained was 9cm. All hips remain stable and loss of the range of hip and knee motion was not significant. Other complications include pin tract infection one delayed consolidation of callus and one fracture of callus. Conclusion. The Ilizarov hip reconstruction is a good option for the treatment of the late sequelae of infantile hip infection in adolescents. It should be considered a promising choice for the management of late sequelae of infantile hip infection