This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection of Bones & Joints, Subject name: Orthopaedics
Tom Smith Arthritis - 
Select and explain. 
A. Pyogenic Infection of infancy, B. TB, C. Rheumatoid arthritis in children, D. Osteoarthritis in Middle aged men
A: Pyogenic Infection of infancy
Answer: A: Pyogenic Infection of infancy 
Explanation: Ans. is 'a' i.e., Pyogenic infection of infancy o Tom smith arthritis is the septic arthritis of hip joint, occurs in infancy. At this stage head of the femur is cartilaginous and is rapidly and completely destroyed by the pyogenic process.o Has been explained in previous sessions.