This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
[{'content': 'Traumatic dislocation of epiphysial plate of femur occurs -a) Mediallyb) Laterallyc) Posteriorlyd) Rotationallye) Anteriorly \nSelect and explain. \nA. ab, B. bc, C. acd, D. abc', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Traumatic separation of distal femoral Epiphysis \n\nOverall this injury is rare; However, of all the injuries of epiphysis, injuries of the distal femoral epiphysis have the highest incidence of post-traumatic growth arrest.\nThese injuries are described according to the direction of displacement of the epiphysis and the corresponding Salter-Harris classification.\n\n\nMost common is medial or lateral displacement with a fracture of the adjacent metaphysic (a Salter-Harris type II injury). Such injuries reflect a marked valgus or varus stress.\nPosterior displacement of the femoral epiphysis is uncommon but can occur as a result of a direct blow to the flexed knee.\n\nAlso know\n\nSeparation of proximal femoral epiphysis (SCFE) occurs postero-medially.', 'role': 'assistant'}]