Table 1 Adapted from IDSA Diabetic foot infection classification system [5]
From: Making the equivocal unequivocal: standardization of clean margins in diabetic foot osteomyelitis
Manifestation of infection | IDSA infection severity |
|---|---|
No symptoms or signs of infection Recall, infection is when 2 or more of the following are present: erythema, edema, pain, warmth, purulence | Uninfected |
Local infection within the skin or subcutaneous tissue, and where erythema is restricted to > 0.5 cm to ≤2 cm surrounding the ulcer, No systemic signs of infection | Mild |
Local infection as above, with erythema > 2 cm, or deeper tissues affected, No systemic signs of infection | Moderate |
Local infection as above with systemic signs of infection | |
Recall, systemic signs include 2 or more of the following: | Severe |
Temperature > 38 °C or < 36 °C | |
Heart Rate > 90 beats/minute | |
Respiratory Rate > 20 breaths/min or PaCO2 < 32 mmHg | |
White Blood Cells > 12,000 or < 4000 cells/μL or 10% immature bands | |