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Can a MRI be used to diagnose Legg Calve Perthes?

MRI may show proximal femoral abnormalities before radiography in the setting of Legg-Calvé-Perthes disease, allowing appropriate diagnosis and prompt treatment. MRI can also assess for revascularization, healing, and multiple complications. Choose Top of page ABSTRACT Introduction << Epidemiology and Pathogen...

How is the prognosis of Perthes disease determined?

Prognosis is also influenced by the percentage of femoral head involvement and degree of primary deformity of the femoral head and the secondary osteoarthritic changes that ensue. Children with over 50% of femoral head necrosis at time of diagnosis should be considered for operative management 14 .

When to use MRI or fluoroscopy for Perthes disease?

Traditionally arthrography performed under general anesthesia with conventional fluoroscopy is performed to assess congruence between the femoral head and the acetabulum in a variety of positions 3. MRI is increasingly replacing this, in an effort to eliminate pelvic irradiation.

What are the radiographic features of a Perthes lesion?

Perthes lesion 1 Radiographic features. As the labrum is often normally positioned it may be difficult to appreciate, especially if scarring obliterates the space deep to the labrum. 2 Treatment and prognosis. ... 3 History and etymology. ... 4 Differential diagnosis. ... 5 See also. ...

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