This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolic Disorders Leading to Osteosclerosis, Subject name: Orthopaedics
[{'content': 'Most common site for the osteoporotic vertebral fracture is - \nSelect and explain. \nA. Dorsolumbar spine, B. Cervical spine, C. Lumbosacral spine, D. Dorsal spine', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Dorsolumbar spine o Osteoporosis is an asymptomatic disorder unless complications (predominantly fractures) occur,o Most common symptom of osteoporosis is back pain secondary to vertebral compression fracture.o Dorso-lumbar spine is the most frequent site.o Other common sites of fracture are lower end radius (Coile's fracture) and fracture neck femur.o Osteoporotic fracture (fragile fractures) are : (i) Fracture vertebrae (most common), (ii) Colie's fracture, (iii) Fracture neck femur.oSerum calcium, phosphate and alkaline phosphatase are normal in osteoporosis.", 'role': 'assistant'}]