Bone Abstracts

Background: Genetic advances have led to the identification of 14 genes implicated in Osteogenesis imperfecta [OI], encompassing 96–98% of cases. Hallmark features of osteogenesis imperfecta include fractures from minimal trauma, bowing of the legs and growth retardation. Non-skeletal features include blue sclera, dentinogenesis imperfecta, hearing and refractory visual deficits, pulmonary dysfunction and cardiac valvular malformations. Classical radiographic features are...

Background: Mutations in the SCN8a gene, which encodes one of the most abundant voltage gated sodium channels; Nav1.6, has a strong association with epileptic encephalopathy type 13, ataxia, muscle atrophy and intellectual disability. Previous cases of pathological skeletal fractures in children with known SCN8a mutations have been published but the source of the related skeletal mechanism remains unclear.Presenting problem: The proband presented at 15mo...