Bone Abstracts

Background: Noonan syndrome (NS) is a genetic multisystem disorder characterized by distinctive facial features, learning difficulties, short stature, and cardiac defects. Other important findings include skeletal anomalies, especially spinal and chest deformities. Skeletal dysplasia was proven to be secondary to a disorder of RAS-mitogen activated protein kinase (MAPK) pathway which is essential for regulation of cell differentiation and growth including bone homeostasis. We ...

Background: Current extension in the usage of growth hormone therapy (GHT) has increased the prevalence of bone complications. Legg Calvé Perthes disease (LCPD) is characterized by idiopathic avascular necrosis of the proximal femoral epiphysis. More frequently in boys between 4 and 8 years, LCPD is of unknown ethology. An increased incidence has been stated in case of GH deficiency. There is increasing data that children with LCPD may have a more widespread skeletal diso...