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
Not true about Osteogenesis imperfecta - 
Select and explain. 
A. Impaired healing of fracture, B. Deafness, C. Laxity ofjoints, D. Fragile fracture
A: Impaired healing of fracture
Answer: A: Impaired healing of fracture 
Explanation: Fractures are usually due to trivial trauma, but surprisingly heal well and fractures may heal without any treatment.
Though fracture heal normally with normal appearing callus, remodelling into natural lamellar bone does not occur, making the long bone susceptible to refracture.