<prompt> Freibergs disease is a recognised osteochondritis which affects which of the following?Head of 2nd and 3rd MetatarsalLunate boneHipNavicular bone  <response>: Names of some osteochondritis and the affected area is given below: Friebergs disease - Head of 2nd and 3rd metatarsal Pehes disease - Hip Kienbock disease - Lunate bone Kohlers disease - Navicular bone Ref: Oxford Handbook of Clinical Specialities, 8th Edition, Page 702. 