The Wound That Hated Debridement: Recognizing Pathergy and Great mimics of Diabetic Foot Infection
15/06/2026 | 20 min
A patient with a presumed infected diabetic foot ulcer worsens after debridement and escalating antibiotics. This episode explores pathergy — an exaggerated inflammatory response to minor trauma that can mimic infection — and how misdiagnosis leads to harmful over-treatment.
Learn how to recognize red flags (rapid enlargement after intervention, pain out of proportion, violaceous borders, negative cultures) and why management often requires restraint, anti-inflammatory therapy, and targeted immunomodulation rather than repeated surgical debridement.
Escaping Plato’s Cave: Amputation Illusion- how healthcare learned to accept preventable limb loss
14/06/2026 | 26 min
In this episode of Diabetic Foot Files Dr. G uses Plato's allegory of the cave to reveal how long‑standing assumptions and systemic failures—not just biology—drive many diabetes‑related amputations. He highlights delayed referrals, missed vascular assessments, poor offloading, and fragmented care as the real drivers behind the shadow of inevitability.
Featuring the work of limb‑salvage pioneers, the episode stresses that diabetic foot ulcers are medical emergencies where early detection, timely revascularization, aggressive offloading, and multidisciplinary teams can prevent many amputations. It’s a call to shift from reactive care to coordinated prevention so every limb has a chance.
From seizures to Granulation Nation: The Unexpected Story of Phenytoin in Wound Healing
13/06/2026 | 24 min
This episode traces how phenytoin — an anticonvulsant known for causing gingival overgrowth — was repurposed into a topical therapy for chronic wounds. It outlines the drug’s mechanisms in wounds: activating fibroblasts, increasing collagen synthesis, reducing MMP activity, modulating inflammation, and promoting granulation and angiogenesis in stalled diabetic foot ulcers.
Listeners will hear clinical implications, common formulations, and important cautions: topical phenytoin can aid healing in selected chronic ulcers but does not replace debridement, offloading, vascular optimization, or infection control, and should be avoided in malignant wounds, untreated osteomyelitis, or critical ischemia. The episode also highlights the drug’s history and future delivery innovations.
Forgotten Infection Friday- Buruli Ulcer vs Diabetic Foot: Lessons from a Painless Wound
12/06/2026 | 25 min
This episode explores the rare Buruli (Buruli) ulcer caused by Mycobacterium ulcerans and its toxin mycolactone, which destroys tissue, suppresses immune signaling, and reduces pain, leading to delayed diagnosis and severe disability.
It draws parallels with diabetic foot ulcers—both can progress silently beneath the skin—covers history, pathology, diagnosis (PCR, biopsy), treatment (antibiotics and surgery), and the key lesson: lack of pain does not mean lack of severity.
Why we use Saline vs. Sterile Water vs. Tap Water vs Seawater- Not all water is equal
11/06/2026 | 29 min
In this episode Dr. G explains why 0.9% sterile saline is the preferred when using to cleanse for diabetic foot ulcers, diving into osmosis, isotonicity, and how saline preserves cell function while avoiding tissue damage. Why we use saline, why tap water is controversial and what alternatives really do.
Dr G also covers the risks of seawater and tap water (including dangerous bacteria like Vibrio vulnificus and piped biofilms), when advanced cleansers such as hypochlorous acid are needed, and practical takeaways: avoid ocean and non-sterile water, use isotonic sterile saline or recommended wound cleansers.
June is Wound Healing Awareness Month (WHAM)! Join us in raising awareness, advancing education, and improving outcomes for patients with wounds—because every wound deserves the chance to heal. Celebrate Wound Healing Awareness Month (WHAM) this June with the American Board of Wound Management (ABWM) and take the next step in your wound care career with 25% off your first certification application- https://abwmcertified.org/promo/
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Welcome to the Diabetic Foot Files Podcast and the LIMBWatch series — where diabetic foot surveillance, wound intelligence, prevention science, and limb preservation come together. I’m Dr. G / Dr. WoundPicasso aka Dr. Gabrielle Hutcheson Donaldson, podiatrist and wound care specialist, and I’m here to educate, empower, and guide you through the evolving world of diabetic foot care.
From wound healing and pressure injuries to surveillance systems and amputation prevention, we break down the science, challenge the myths, and share strategies that help save limbs and improve lives. Whether you’re a patient, caregiver, clinician, or healthcare professional, this is your destination for diabetic foot education, prevention, and preservation.
So let’s dive in — because when you take care of your feet, they take care of you.LIMBWatch: Surveillance Before Salvage.
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