You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Most commonly affected joint in myositis ossificans is and explain in detail?
Ans. d (Elbow). (Ref. Maheshwari, Orthopaedics, 2nd ed., 42)Myositis ossificans# It is ossification of haematoma around a joint resulting in the formation of a mass of bone restricting joint movements often completely.# It is due to severe injury to a joint especially when the capsule & the periosteum have been stripped from the bones by violent displacement of the fragments.# It is particularly common around elbow joint in children as periosteum is loosely attached to bones also in the patient with prolonged or permanent neuronal damage from head injury & in paraplegia.# Massage following trauma is a factor known to aggravate myositis ossificans.# The most commonly affected joint in myositis ossificans is elbow.# The calcification classically starts from periphery in myositis ossificans, while from center in parosteal osteosarcoma.