IWGDF 2024 Recommendations for Classification and Management of Diabetic Foot Ulcers
Classification Systems
- The International Working Group on the Diabetic Foot (IWGDF) 2024 guidelines advise against using the Wagner classification as the primary system because it provides poor clinical discrimination and does not individually assess key factors such as neuropathy, infection, and peripheral artery disease. Strong recommendation. 1
- A 2024 IWGDF systematic review of 74 Wagner‑related studies found that most were at high risk of bias and produced inconsistent results, limiting the reliability of the system. 1
- The Wagner system fails to evaluate ulcer area, neuropathy, infection, and peripheral artery disease separately, and it over‑emphasises gangrene, reducing its usefulness for comprehensive care. 1
- The IWGDF 2024 guidelines recommend the SINBAD classification (Site, Ischaemia, Neuropathy, Bacterial infection, Area, Depth) as the preferred tool because it captures six critical variables. Strong recommendation. 1
- SINBAD can be applied without specialized equipment, making it feasible in most clinical settings. 1
- Validation of SINBAD in 12 studies has shown consistent results and substantial‑to‑good inter‑rater reliability. Strong recommendation. 1
Core Standard‑of‑Care Principles (Applicable to All Ulcers)
- Sharp debridement performed according to clinical need, with frequency determined by the treating clinician, remains a cornerstone of ulcer management. Strong recommendation. 2, 3, 4
- Basic wound dressings that absorb exudate and maintain a moist wound environment should be used for all diabetic foot ulcers. Strong recommendation. 2, 3, 4
- Pressure offloading (e.g., therapeutic footwear, total contact casts) is critical for ulcer healing and should be instituted promptly. Strong recommendation. 2, 3
Interventions That Should Not Be Used
- Topical antiseptic or antimicrobial dressings are not recommended (Strong recommendation, Moderate certainty). 2, 3, 4
- Honey, collagen, or alginate dressings are not recommended (Strong recommendation, Low certainty). 2, 3, 4
- Autolytic, biosurgical, hydrosurgical, chemical, or laser debridement techniques are not recommended (Strong recommendation, Low certainty). 2, 3, 4
- Routine enzymatic debridement should be avoided; it may be considered only when sharp debridement is unavailable. Conditional recommendation. 2, 3, 4
Adjunctive Therapies (When Standard Care Fails)
Non‑Infected Neuro‑Ischemic Ulcers
- Sucrose‑octasulfate‑impregnated dressings may be considered after 2 weeks of optimal standard care (including offloading) if healing is insufficient. Conditional recommendation, Moderate certainty. 2, 3, 5
Ischemic or Neuro‑Ischemic Ulcers
- Hyperbaric oxygen therapy can be considered when standard care has failed and the necessary resources are available. Conditional recommendation, Low certainty. 2, 3, 5, 6
- Topical oxygen therapy is an alternative adjunct when standard care fails and appropriate resources exist. Conditional recommendation. 2, 3, 5, 6
Advanced Therapies (Specialized Settings)
- Autologous leucocyte‑platelet‑fibrin patches may be employed when best standard care is ineffective and the facility has the expertise for venepuncture‑based preparation. Conditional recommendation, Moderate certainty. 3, 4, 5, 6, 7
- Placental‑derived products can be considered as an adjunct after failure of standard care. Conditional recommendation, Low certainty. 3, 5, 6
Post‑Surgical Wound Management
- Negative pressure wound therapy (NPWT) is recommended as an adjunct to standard care for post‑surgical diabetic foot wounds. Conditional recommendation. 5
Management of Diabetic Foot Ulcer Grade 1
Standard Care Interventions
- Sharp debridement is the primary intervention for grade 1 diabetic foot ulcers and should be performed according to individual clinical need, with frequency determined by the treating clinician. 8
- A basic wound dressing that absorbs exudate and maintains a moist wound environment should be applied as the primary dressing. 8
- Aggressive off‑loading of plantar pressure is essential; therapeutic footwear, total‑contact casts, or removable cast walkers are recommended to reduce plantar load. 8
- If clinical signs of soft‑tissue or bone infection are present, appropriate infection management should be initiated. 8
- Revascularization should be considered when ischemia is identified, although it is more pertinent for higher‑grade ulcers. 8
Assessment and Evaluation
- Neuropathy should be assessed by testing loss of protective sensation using a 10‑g monofilament or a 128‑Hz tuning fork. 8
- Vascular status assessment includes palpation of the dorsalis pedis and posterior tibial pulses; if pulses are not palpable, an ankle‑brachial index measurement is indicated. 8
- Structural foot deformities that increase plantar pressure must be identified during the initial evaluation. 8