Which is the earliest radiologic feature of bone infection: (A) Destructive lytic lesion, (B) Presence of periosteal reaction, (C) Soft tissue edema, (D) Appearance of sequestra
Answer is C. Sequence of changes in bone infection (osteomyelitis) on X-ray are : Earliest finding of osteomyelitis on X ray within 8 days is soft tisse swelling and loss of soft tissue planes Bone destruction and formation of periosteal reaction seen at 10-14 days Invoucrum formation at 3 weeks Sequestrum formation at 4 weeks