Bony change on X-ray signs of acute osteomyelitis are seen after (DNB Dec 2012)
a. Films are negative in the initial 10 days subsequently a localized area of bone destruction in observed in the meta physic surrounded by a wide zone of decalcified bone.
b. Later within the next few weeks the periosteal shadow is elevated at the same level and multiple lamination of bone parallel with the shaft are seen.