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
Frieberg’s disease involve 
Select and explain. 
A. Tibial tuberosity, B. Calcaneal tuberosity, C. 2nd metatarsal, D. 5th metarasal
C: 2nd metatarsal
Answer: C: 2nd metatarsal 
Explanation: A condition characterized by infarction and fracture of the metatarsal head.
Most often seen in 2nd metatarsal (MT) head, particularly the dorsal aspect4th and 5th MT rarely affected