Diadetic  foot

Diadetic  foot

M.Pourafkari

Shahid Beheshti University of medical science

Taleghani Hospital Radiology Department

marina@ams.ac.ir

• Diabetic foot infections are associated with significant morbidity, account for the largest number of diabetes-related hospital bed days and contribute to 50% of all lower extremity amputations in the United States.

• Initial procedure for imaging suspected osteomyelitis in the diabetic patient.
• Characteristic signs of osteomyelitis on plain radiograph include focal loss of trabecular pattern, periosteal reaction and frank bone destruction.
• Plain radiographs can also reveal presence of foreign bodies, gas in soft tissues, fractures or bony abnormalities.
• Poor sensitivity (22-75%) as osteomyelytic changes are delayed for 10-21 days following infection.
• 30-50% loss of bone density is required before a radiograph will demonstrate osteomyelitis.
• False positive results may be found in patients with neuroarthropathy (Charcots arthropathy).