Key result
The presence of an abnormal lesion on MRI was significantly associated with continuous lateral subluxation of the femoral head in patients with Legg-Calvé-Perthes disease.
Why the study?
Does the presence of abnormal lesions on MRI predict continuous lateral subluxation in patients with Legg-Calvé-Perthes disease?
Observational (n=24)
Does the presence of abnormal lesions on MRI predict continuous lateral subluxation in patients with Legg-Calvé-Perthes disease?
In Legg-Calvé-Perthes disease, abnormal lesions on MRI are significantly associated with continuous lateral subluxation, a known poor prognostic factor.
May aid early risk stratification in Legg-Calvé-Perthes disease; leaves open prospective validation of MRI prognostic utility.
Lateral subluxation of the femoral head is one of the poor prognostic factors of Legg-Calvé-Perthes disease. The aim of this study was to investigate the cause of lateral subluxation of the femoral head on the basis of the changes over time on MRI. Twenty-four patients with unilateral Legg-Calvé-Perthes disease were analyzed retrospectively. Lateral subluxation was measured as the tear drop distance on radiographs. We focused on joint fluid, medial articular cartilage thickening, and abnormal lesion on MRI. Lateral subluxation continued significantly in patients with poor results. Among the MRI findings, the presence of an abnormal lesion was associated significantly with the continuous lateral subluxation.
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Kotoura et al. (2015) conducted an observational in Legg-Calvé-Perthes disease (n=24). Abnormal lesion on MRI was evaluated on Continuous lateral subluxation. The presence of an abnormal lesion on MRI was significantly associated with continuous lateral subluxation of the femoral head in patients with Legg-Calvé-Perthes disease.
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