BACKGROUND A major cause of osteonecrosis of the femoral head is interruption of a blood supply to the proximal femur. In order to evaluate blood circulation and pathogenetic alterations, a pig femoral head osteonecrosis model was examined to address whether ligature of the femoral neck (vasculature deprivation) induces a reduction of blood circulation in the femoral head, and whether transphys...

Fixation by a single screw is considered the current treatment of choice for a slipped capital femoral epiphysis. This approach promotes premature physeal closure. The use of a modified, standard, single, cannulated screw designed to maintain epiphyseal fixation without causing premature closure of the physis was reviewed in ten patients. The nine boys and one girl aged between 10.6 and 12.6 ye...

SCFE is the most common hip abnormality in adolescence. The subsequent development and severity of degenerative changes is related to the degree of slippage and to delay in diagnosis. Awareness of this diagnostic possibility in the population at greatest risk and knowledge of subtle and early radiographic findings will allow prompt diagnosis and treatment of SCFE. Follow-up radiographic examina...

Disruption of the proximal femoral epiphysis in the neonate is a rare injury, and requires to be differentiated from congenital dislocation of hip, osteomyelitis of proximal femur and fracture of the proximal femoral metaphysis. The proximal femoral epiphysis in the neonate is not visible in an X-ray. Therefore, diagnosis of its disruption is not easy. Radiological changes do occur in the proxi...

BACKGROUND Corrective osteotomy and intramedullary rodding are widely used in children with osteogenesis imperfecta (OI), but revision rodding is often required. This study aims to investigate the effect of purchasing distal femoral epiphysis on the longevity of fixation using non-elongating rod. METHODS We investigated children with Sillence type III or IV OI who received antegrade femoral R...

Slipped capital femoral epiphysis may be associated with hypothyroidism and other endocrinopathies. Routine screening for such abnormalities is unlikely to be cost-effective since the overall incidence of these disorders, in association with slipped capital femoral epiphysis, is low. The identification of a presenting characteristic which would predict the chance of an associated endocrinopathy...

Title:Lateral insertion is a good prognostic factor after in situ fixation in slipped capital femoral epiphysis

PURPOSE Based on previous investigations on the vascular blood supply to the femoral head, a technique for anatomical reduction after slipped capital femoral epiphysis was developed. This technique is a modification of the original technique by Dunn using a retinacular soft-tissue flap. This allows the visual control of the epiphyseal vascular blood supply. We report the experience at the inven...

Avascular necrosis (AVN) of the proximal femoral epiphysis is an iatrogenic complication of treatment for developmental dysplasia of the hip (DDH), and does not occur during the natural history of the untreated hip. The objective is to produce a congruous concentric joint and minimize premature degenerative disease and disability during young adult life, by achieving early reduction of the hip ...