Debridement of Foot Wounds

Introduction to Debridement

Emergency physicians typically perform urgent surgical debridement for gas-forming infections, abscesses, or necrotizing fasciitis, as well as debridement of infected diabetic foot wounds when immediate intervention is needed, in the ED setting 1
Podiatrists are the primary providers for callous debridement due to their specialized training, and podiatry is considered an essential component of multidisciplinary care for foot conditions 3

Sharp debridement (with scalpel, scissors, or tissue nippers) is generally preferred for callouses, and is strongly recommended for removing slough, necrotic tissue, and surrounding callus of diabetic foot ulcers 1, 4
Other methods include mechanical debridement, autolytic debridement (hydrogels), biological debridement (maggot therapy), and enzymatic debridement
Hydrogel-based autolytic debridement may have beneficial effects compared to saline-moistened gauze, though evidence quality is low 4

Urgent surgical debridement in the ED is indicated for gas-forming infections, abscesses, necrotizing fasciitis, and severely infected diabetic foot wounds requiring immediate intervention 2, 4

For plantar foot wounds requiring debridement, lidocaine with epinephrine can be safely used despite traditional prohibitions, and buffering the anesthetic with sodium bicarbonate can decrease pain during infiltration 5
For neuropathic ulcers, debridement can often be performed without any local anesthetic 5

After debridement, emollients and non-adherent dressings should be used to protect the debrided skin, and dressings should be selected primarily based on exudate control, comfort, and cost 3, 4
Removal of pressure from a foot wound (off-loading) is crucial to the healing process, according to the Clinical Infectious Diseases guidelines 2

Overdebridement by inexperienced practitioners can make underlying skin susceptible to increased blistering and tenderness, as noted by the British Journal of Dermatology 3