The role of inherited thrombotic disorders in the etiology of Legg-Calvé-Perthes disease.
cross_sectional · Level IV
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Abstract
Inherited thrombophilia has been suggested as a cause of Legg-Calvé-Perthes disease in up to 75% of patients. This prevalence seems high compared to the prevalence of inherited thrombophilia in other thrombotic disorders (average, 30%). Therefore, we investigated 44 patients with Legg-Calvé-Perthes disease for antithrombin-III, protein-C, and protein-S deficiency and activated protein C (APC) resistance. Three (6.8%) of our patients were positive for APC resistance, and one patient (2.2%) showed deficiency of protein-C activity. Our results suggest that inherited thrombophilia is not associated with avascular necrosis of the femoral head (Legg-Calvé-Perthes disease).
Medical subject headings
- Legg-Calve-Perthes Disease
- Thrombophilia