👟✨ We’ve teamed up with DARCO to bring you 25% off the POGO shoe! Want to stay active, reduce pressure, and help prevent ulcers before they begin? Visit darcodirect.com/product/pogo/ and use our exclusive code FootFiles25 at checkout to save 25% off your pair. 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- World Leaders in LIMB Salvage Follow us on TikTok @diabetic.foot.files - https://www.tiktok.com/@diabetic.foot.files?_r=1&_t=ZS-986cXIoucTK Instagram @DiabeticFootFiles - https://www.instagram.com/diabeticfootfilespodcast?igsh=MXBzbXhjdmJnYjNyMw%3D%3D&utm_source=qr for exclusive clips, clinical pearls, behind-the-scenes content, and the latest updates.
Episode Title: The 10-Gram Test That Can Save a Limb: Understanding Monofilament Screening, Neuropathy & Prevention with Dr. Thomas Hardiman Episode Summary: What if one of the simplest tools in diabetic foot care could help prevent devastating complications before they happen? In this powerful episode of LIMBWatch on Diabetic Foot Files, Dr. Gabrielle Donaldson sits down with Dr. Thomas Hardiman, a podiatric surgeon with over 40 years of experience in foot and ankle care and a pioneer in diabetic foot screening through his work with medical monofilament technology. Together, they take a deep dive into the science, history, and clinical importance of the 10-gram monofilament examination — a simple yet powerful tool used to identify loss of protective sensation (LOPS) and help recognize patients at risk for diabetic foot ulcers and amputations. Dr. Hardiman reveals the fascinating story behind the development of the monofilament, from early sensory testing pioneers to the influence of Dr. Paul Brand’s groundbreaking work, and explains why prevention starts by “going upstream” rather than waiting until patients present with wounds. In this episode, you’ll learn: 🦶 How the 10-gram monofilament actually works and what is happening at the nerve level when sensation is lost 🧬 How chronic hyperglycemia damages nerves through metabolic pathways, myelin injury, and impaired sensory signaling ⚠️ Why neuropathy is not simply “numbness” — but the loss of the body’s protective alarm system 🔍 Why a patient can have a normal monofilament exam and still remain at risk for ulceration 🎵 The difference between monofilament testing, vibration perception testing, and tuning fork examinations 📋 The correct technique, anatomical testing sites, and common mistakes clinicians make 🦠 Why single-use monofilaments matter for accuracy and infection prevention 👟 The importance of examining footwear and how a hidden foreign object can lead to a recurring ulcer 🤖 How artificial intelligence may transform diabetic foot surveillance and help identify high-risk patients earlier ❤️ Why patient education, daily foot inspections, and prevention remain some of the most powerful limb-saving interventions Dr. Hardiman shares unforgettable clinical lessons, including a patient whose heel ulcer repeatedly returned because a nail hidden inside his shoe was causing repeated trauma — a reminder that sometimes the most important diagnostic tools are simply looking, listening, and paying attention. He also challenges the healthcare community to rethink the phrase “silent epidemic,” explaining why diabetic foot complications are not silent and why calling them that may unintentionally create acceptance instead of urgency. His message to patients is clear: “Your feet should last a lifetime, and with proper care, they can.” This episode is a reminder that limb preservation does not always begin with the newest technology. Sometimes it begins with mastering the fundamentals, performing them consistently, and empowering patients before the first ulcer ever develops. Join us for an eye-opening conversation about neuropathy, prevention, screening, and the simple test that can help change the future of diabetic limb health. Key Takeaway Quote: “We don’t sell monofilaments. We partner in prevention.” — Dr. Thomas Hardiman 🦶 A 10-gram filament can change the future of a limb. Before a diabetic foot ulcer appears, there may be a silent warning sign: loss of protective sensation. Dr. Hardiman, Medical Director of Medical Monofilament, explains why proper monofilament testing matters — helping clinicians identify the “foot at risk” and take action before a small problem becomes a devastating complication. The right tool. The right technique. The right time. Learn more about Medical Monofilament technology: 🔗 https://www.medicalmonofilament.com
This episode explores why pain evolved as a critical protective alarm and how diabetes—through chronic high glucose, inflammation, and microvascular damage—silences that alarm by injuring peripheral nerves. It explains the biological pathways behind diabetic neuropathy, why the feet are especially vulnerable, how repetitive pressure and biofilm-forming bacteria turn painless injuries into ulcers, and the stepwise cascade from nerve damage to amputation. The episode emphasizes prevention and the clinician’s role as an external warning system: early screening, offloading, proper footwear, glucose control, vascular assessment and coordinated limb-salvage care to protect patients’ feet.
This episode explains gossypiboma (retained surgical sponge), how the body mounts a foreign‑body granuloma response, and why these sponges can mimic infection or tumors and lead to chronic inflammation. It highlights the added danger for people with diabetes (impaired immunity, poor circulation, neuropathy), shares a real diagnostic case, and reviews prevention steps like sponge counts, radiopaque markers, barcode systems, and surgical timeouts. The key message: persistent non‑healing wounds often need a detective approach to look beneath the surface.
Melioidosis is an infection caused by the soil and water bacterium Burkholderia pseudomallei that can enter through cuts, wounds, or inhalation. It often mimics common conditions—pneumonia, tuberculosis, routine wound infections, or chronic diabetic foot infections—making diagnosis challenging. People with diabetes are at higher risk, and proper diagnosis requires culture and targeted therapy (IV intensive antibiotics such as ceftazidime or meropenem followed by prolonged oral eradication therapy). Prevention focuses on reducing soil and water exposure, protective footwear, wound care, and detailed environmental history for at-risk patients.
The below-the-knee amputation (BKA) is a common major limb loss in people with diabetes, resulting from a long pathway of neuropathy, vascular disease, biomechanical breakdown, ulcers, and infection. Modern amputation philosophy focuses on preserving the knee to maximize function, but BKA remains a marker of advanced systemic disease with significant morbidity and mortality. Preserving the knee improves mobility, energy efficiency, and prosthetic outcomes; yet prevention is crucial. Early screening, offloading, wound care, vascular assessment, and multidisciplinary limb-salvage teams—especially podiatrists working with vascular and infectious disease specialists—are key to stopping the progression that leads to amputation.
LIMBWatch Series | Dr. Paula DeJesus DPM, FACFAS, : The Future of Limb Salvage Through Minimally Invasive Surgery In this episode of the LIMBWatch Series on Diabetic Foot Files sits with Dr. Lady Paula DeJesus DPM, FACFAS, DABPM, CWSP— a triple board‑certified podiatric surgeon and Section Chief at Yale New Haven Health Greenwich Hospital Dr. Dejesus shares her remarkable journey into podiatric medicine and discusses the clinical decision-making behind complex diabetic foot infections, osteomyelitis, peripheral arterial disease, and limb preservation. She explains how minimally invasive surgical techniques are transforming diabetic limb salvage, including innovative approaches to treating calcaneal osteomyelitis while avoiding major amputations such as minimally invasive techniques like Avedis suction curettage. The conversation also explores the importance of multidisciplinary care, early vascular assessment, biomechanics, patient compliance, advanced imaging, regenerative medicine, and the compassionate communication needed to help patients understand amputation risk without losing hope. Whether you’re a podiatrist, wound care clinician, vascular specialist, student, or simply passionate about preventing amputations, this episode is filled with practical clinical pearls and inspiring insights from one of today’s leaders in limb salvage. In this episode you’ll learn: When to escalate from conservative care to surgery The role of vascular assessment in limb preservation Why biomechanics is often the missing piece in wound healing Modern approaches to diabetic foot osteomyelitis How minimally invasive surgery is changing limb salvage The value of multidisciplinary teams in reducing amputations Strategies for improving patient compliance and communication Clinical lessons every young limb salvage specialist should know In this episode of Limb Watch, — shares real-world limb preservation strategies, including skin substitutes, and the importance of revascularization for diabetic foot infections. Diabetic Foot Files is dedicated to advancing diabetic foot care, wound healing, and amputation prevention through conversations with world-renowned experts in limb salvage.
Dr. G examines how diabetic toes and ulcers are rarely just wounds but visible warnings of neuropathy, poor circulation, infection, and gaps in care. She asks who is responsible for protecting the foot — the patient, primary care, podiatry, vascular, infectious disease, surgery, or nursing — and how fragmented referrals and delayed access can lead to a cascade ending in amputation. The episode also explains hospital handling of amputated tissue, patients’ rights to their removed parts, and the future of limb preservation through surveillance technologies and coordinated responsibility to prevent avoidable loss.
This episode introduces edge trenching, a novel debridement technique developed by Dr. Igor Melnichuk that targets dysfunctional wound edges (epibolies, hyperkeratosis, rolled or fibrotic margins) to create a biologically active transition zone and promote epithelial migration. It explains the procedure, proposed mechanisms, clinical use—especially in diabetic plantar ulcers—how trenches are created and repeated, and emphasizes that edge trenching must be part of comprehensive care addressing perfusion, infection control, offloading, and underlying causes.
Dr. Giulia Baldazzi, a vascular surgeon, fellow and phd candidate researcher, shares her journey from UCSF to Italy and explores advances in perfusion assessment, revascularization, and limb preservation for diabetic foot care. She discusses diagnostic innovations (PAT, MaxCORE, NIRS), the importance of early vascular referral and multidisciplinary teams, and practical strategies to prevent amputations and improve healing.
Actinomycosis is a rare, slow-growing filamentous gram-positive bacterial infection that can mimic cancer, tuberculosis, or chronic diabetic foot infections by producing woody fibrosis, interconnected sinus tracts, and characteristic yellow "sulfur" granules. Diagnosis requires deep tissue biopsy and careful anaerobic culture or histology; treatment is prolonged high‑dose penicillin (or alternatives if allergic) often combined with surgical drainage and debridement.
In this episode of Diabetics with Files, Dr. G explains liquid biopsies — blood tests that detect cell-free DNA and other molecular signals — and how they work. We explore how this technology could help detect infection early, identify harmful inflammation, predict a wound’s healing potential, and personalize treatment for diabetic foot ulcers. The episode also covers current limitations — cost, access, standardization, and need for clinical validation — and explains that liquid biopsies would complement, not replace, clinical exams and imaging. Ultimately, liquid biopsies could shift wound care from reactive to predictive and improve limb salvage in the future.
This episode explains how chronic wounds—especially heavily exudative and diabetic ulcers—act like metabolic drains, leaking proteins, growth factors, immune cells, electrolytes, and calories and impairing the body’ s ability to heal. Listen for signs of protein loss (low albumin, persistent drainage, weight/muscle loss, delayed healing) and practical strategies to fight back: infection control, offloading, appropriate compression, nutrition optimization, and closing the wound to stop the ongoing resource loss.
LIMBWatch | Dr. David B. Alper – The Policy Behind Preventing Amputations Why are so many lower extremity amputations still happening when the majority could be prevented? In this powerful episode of LIMBWatch, Dr. Gabrielle Hutcheson sits down with nationally recognized limb preservation advocate Dr. David B. Alper, DPM, to explore the critical intersection of healthcare policy, reimbursement, advocacy, and limb salvage. Drawing on decades of clinical experience and legislative leadership, Dr. Alper explains why preventing amputations requires more than excellent medicine—it requires changing the healthcare system itself. Together, they discuss the barriers clinicians face in obtaining early diagnostic testing, advanced wound care therapies, diabetic footwear, vascular imaging, and emerging technologies that could dramatically reduce limb loss. Dr. Alper also shares ongoing legislative efforts to improve access to care, simplify insurance requirements, expand diabetic foot protection programs, and strengthen multidisciplinary collaboration. The conversation highlights the importance of early detection of peripheral artery disease (PAD) and chronic limb-threatening ischemia (CLTI), the role of advocacy organizations, and why clinicians, patients, and policymakers must work together to shift healthcare from reacting to amputations toward preventing them. In this episode, you'll learn: Why an estimated 85% of diabetic-related amputations may be preventable The policy barriers limiting early PAD and CLTI diagnosis How insurance reimbursement influences limb salvage decisions Why diabetic footwear, vascular imaging, and preventative screening remain underutilized The importance of multidisciplinary limb preservation teams How clinicians and patients can become advocates for legislative change Practical clinical pearls for identifying high-risk patients before limb loss occurs Whether you're a podiatrist, vascular specialist, wound care clinician, primary care provider, healthcare administrator, policymaker, or patient advocate, this episode offers valuable insight into how policy decisions directly impact patient outcomes—and what can be done to change the future of limb preservation. Because saving limbs starts long before the operating room—it starts with education, early intervention, and advocacy.
In this episode , one of the world’s most influential pioneers in limb preservation, Dr.David Armstrong DPM, MD, PhD Distinguished Professor of Surgery and Neurological Surgery and a Global Leader in limb preservation whose research has fundamentally changed how clinicians approach diabetic foot disease. Dr. Armstrong shares the personal story that inspired his lifelong mission to prevent amputations, describing two unforgettable patients whose experiences taught him one of medicine’s greatest lessons—that the absence of pain can be more dangerous than pain itself. Throughout the conversation, he explains why diabetic foot ulcers remain one of the most underestimated complications of diabetes, introduces the revolutionary concept of diabetic foot remission, and discusses why healing an ulcer is only the beginning of lifelong prevention. Listeners will discover: Why diabetic foot ulcers are a “silent and sinister syndrome” The true meaning of diabetic foot remission and why recurrence is expected rather than failure How annual foot screening could prevent countless amputations worldwide Why multidisciplinary limb preservation teams reduce both amputations and mortality The biggest unanswered questions surrounding diabetic foot infection The future of wearable technology, smart insoles, smart socks, smart scales, and AI-powered home monitoring How underserved communities can dramatically improve limb salvage with collaboration rather than expensive technology Why the future of diabetic foot care depends on teamwork, innovation, and earlier intervention Dr. Armstrong also reflects on the evolution of limb preservation over the past three decades, discusses the rapid advances in digital health and remote monitoring, and shares his vision of a future where preventable diabetic amputations become increasingly rare. Whether you’re a podiatrist, vascular surgeon, wound care specialist, endocrinologist, nurse, therapist, researcher, student, or someone living with diabetes, this conversation offers invaluable insights from one of the architects of modern diabetic limb salvage. Key Takeaway: “Find a friend.” According to Dr. Armstrong, preventing amputations isn’t the work of one specialty—it takes interdisciplinary teams united by one mission: keeping patients walking and living healthier lives.
This episode explains the crucial difference between hypoxia (low oxygen that can trigger repair) and ischemia (lack of blood flow that deprives tissue of oxygen, nutrients, and immune cells), and how diabetes worsens both. Clinical takeaways: check vascular status with toe pressures and TcPO2 before escalating to advanced wound therapies, and prioritize revascularization when needed to give wounds a real chance to heal.
Dr. G explains how hypoxia‑inducible factor 1 alpha (HIF‑1α) acts as the cell's oxygen sensor and coordinator of wound repair, why diabetes disrupts its signaling, and how that impairment stalls healing in diabetic foot ulcers. The episode summarizes how researchers measure HIF‑1α, and reviews emerging treatments—HIF stabilizers, gene/RNA therapies, stem cells, engineered scaffolds, and oxygen‑releasing biomaterials—that aim to restore molecular healing pathways and improve limb salvage.
This episode explains how xylazine ("tranq"), a veterinary sedative now found in the illicit drug supply, is causing severe, fast-progressing wounds and infections when mixed with fentanyl. It reviews the drug's vasoconstrictive effects, wound features (necrosis, deep infection, slow healing), key differences from diabetic foot ulcers, treatment priorities (debridement, antibiotics, advanced wound care), and the need for compassionate, comprehensive care and referral for substance use disorders.
In this episode of Limb Watch Series with Diabetic Foot Files, host interviews Jason Ayers, a wound care RN and inventor of a topical oxygen hydrotherapy kit that combines warmed antimicrobial cleansing solution with localized oxygen bubbles to cleanse and promote healing in chronic wounds, especially diabetic foot ulcers. Jason explains the origin and prototype development, demonstrates a typical 10–15 minute treatment session, and shares case-study results showing faster cleansing, improved tissue color, reduced drainage and odor, and positive patient feedback. The discussion covers how the device fits into current debridement tools, safety and infection-control design choices, and the inventor’s vision for broader clinical adoption and training to help prevent amputations and advance limb preservation.
In this episode of Diabetic Foot Files Dr. G explores the overlooked foot–liver connection: how liver metabolism, protein synthesis, clotting, and inflammation influence wound healing, infection risk, and limb salvage in people with diabetes. Topics include metabolic dysfunction-associated steatotic liver disease (MASLD), low albumin, sarcopenia, key labs and imaging to consider, and practical steps clinicians can take to address systemic contributors to delayed healing. Takeaway: diabetic foot ulcers are rarely just a local problem—optimizing liver health, nutrition, glycemic control, and systemic care improves healing and reduces amputation risk.
This episode traces coffee’s journey and asks whether daily caffeine affects diabetic foot ulcer healing. It summarizes the science on how caffeine influences blood vessels, sleep, blood sugar, inflammation, fibroblasts, and hydration, and explains that moderate, unsweetened coffee is unlikely to severely impair healing while excessive intake, sugary drinks, poor sleep, or circulation issues can hinder recovery. Practical advice is given: consult your doctor or nutritionist, prioritize overall wound care (circulation, glycemic control, nutrition, sleep, hydration), and consider alternatives like green or herbal teas when appropriate.
