Advertise on podcast: Diabetic Foot Files

Episode Summary Where Are Your Shoes? Turning Family Conversations Into Diabetic Foot Surveillance | LIMBWatch with Jonathan Brocklehurst In this episode of LIMBWatch, Dr. Gabrielle Hutcheson Donaldson sits down with Jonathan Brocklehurst MSc, MIRL, MRCPod, HCPC Registered Podiatrist, wound-care specialist, educator, and author of Grandpa, Where Are Your Shoes? for a powerful conversation about one of the most overlooked components of limb preservation: early observation and prevention. Jonathan shares the journey that led him from podiatry and amputee care to wound healing, health literacy, and ultimately writing a children’s book designed to make diabetic foot education accessible across generations. At the heart of the conversation is a deceptively simple question: “Where are your shoes?” Jonathan explore how footwear can provide clues about what is happening to the foot—from abnormal wear patterns and pressure to rubbing, deformity, instability, and potential sources of tissue breakdown. They discuss why people living with diabetes and neuropathy may not feel injuries developing, making daily visual inspection of the feet and shoes particularly important. But this episode goes far beyond footwear. Jonathan explains why children and family members can become important partners in diabetic foot surveillance without becoming amateur clinicians, and how simple conversations at home can help reduce stigma, isolation, and health-literacy barriers. The discussion explores the powerful relationship between grandparents and grandchildren—and how a child’s seemingly innocent question can open the door to conversations about diabetes, neuropathy, footwear, prevention, and seeking professional care. The conversation also tackles health equity and footwear affordability, emphasizing that effective diabetic foot prevention must account for social determinants of health and the realities of patients’ lives outside the clinic. In a rapid-fire finale, Jonathan addresses some of the biggest misconceptions surrounding diabetic feet, including the dangerous idea that “if it doesn’t hurt, it isn’t a problem.” He also shares practical advice on daily foot checks, footwear, hygiene, and avoiding potentially harmful DIY foot care. Ultimately, this episode asks us to rethink diabetic foot surveillance. It doesn’t always begin with advanced technology or a wound—it can begin with a question, a pair of shoes, a family conversation, and someone noticing that something has changed. Because sometimes, limb preservation begins at home. Where are your shoes? Check your feet. Check your shoes. Protect every step.

In this episode Dr. G explains pinch grafting — a simple autologous technique that places tiny pieces of a patient’s own skin onto a prepared wound bed to create epithelial “islands” that promote closure. She covers the history of the Reverden graft, the biology of graft take (plasmatic imbibition, inosculation and neovascularization), and how epidermal islands accelerate re-epithelialization. The episode emphasizes the critical need for wound-bed preparation, adequate perfusion, infection control, offloading, and systemic optimization in diabetic foot care, compares pinch grafts to split-thickness grafts, and outlines indications, common causes of failure, and the role of grafting in limb salvage.

This episode of Diabetic Foot Files shares ten practical habits to prevent serious foot problems and limb loss in people with diabetes. The host emphasizes vascular assessment as the top priority and walks through daily foot checks, never ignoring small wounds, checking shoes, wearing proper footwear, protecting feet from heat, avoiding home surgery and soaking, taking toenails seriously, knowing personal risk, and having an action plan for problems. Listeners will learn simple, actionable steps to spot issues early, seek prompt professional care, and preserve mobility and quality of life.

Dr. G explains how type 2 diabetes can develop quietly and describes common but often overlooked early signs — persistent thirst and urination, fatigue, blurry vision, recurrent infections, slow-healing cuts, numbness in the feet, increased hunger, and unexplained weight loss. The episode also covers how diabetes is diagnosed (A1C, fasting glucose, and glucose tolerance tests), who should be tested, when high blood sugar becomes an emergency, and why regular screening and early detection matter to prevent serious complications.

Dr. G uses the giraffe-in-quicksand metaphor to show how clinical inertia and tunnel vision quietly worsen diabetic foot ulcers. Clinical inertia isn't doing nothing—it’s doing too little: repeating dressings, documenting instead of investigating, or delaying referrals. She outlines four types of inertia (diagnostic, therapeutic, referral, cognitive), stresses multidisciplinary care, and gives clinical pearls: "stable" ≠ healing, always reassess diagnoses, address blood flow, infection, nutrition, and adherence, and prioritize curiosity, humility, and collaboration to prevent limb loss.

In this episode Dr. G explains how medical necessity and insurance rules affect diabetic foot care, limb salvage, and amputation prevention. You’ll learn what "medically necessary" really means, how prior authorization and denials work, what to include in an appeal or medical necessity letter, and the clinical consequences of delays. The episode also highlights health equity—how socioeconomic barriers change access to care—and encourages patients and clinicians to advocate, document clearly, and explore appeal options to protect limbs and lives.

This episode explains what a PICC line is (Peripherally Inserted Central Catheter), how it delivers prolonged antibiotics, and why it is not automatically required for every diabetic foot infection. Dr. G covers when a PICC makes sense, the importance of source control and multidisciplinary care, the risks and warning signs to watch for, and how patient involvement and infectious disease guidance determine duration and route of therapy.

Dr. G discusses pyomyositis — a deep skeletal muscle infection that can occur in people with diabetes, how it differs from cellulitis, its stages, common causes, typical pathogens, diagnostic steps including MRI and labs, and the importance of source control, imaging, and vascular assessment. Key takeaways: the visible ulcer may be only the surface of a deeper infection, early recognition and imaging are critical, and management often requires both antibiotics and surgical drainage plus attention to offloading and vascular status.

Dr. G explains pyroptosis — an inflammatory form of programmed cell death driven by inflammasomes, caspase‑1, and gasdermin D — and how its pore‑forming, cytokine‑releasing shutdown can amplify inflammation. The episode explores how pyroptosis affects keratinocytes, fibroblasts, and macrophages in diabetic foot ulcers, potentially preventing healing by keeping danger signaling active, and why balancing this response matters for recovery.

This episode explains what NPO (nil per os) means, why clinicians use it to reduce aspiration risk during anesthesia or procedures, and why it’s more complex for people with diabetes. Key points include glucose monitoring every 2–4 hours, tailored insulin and medication plans, risks from gastroparesis, and the importance of asking the care team specific questions about allowed intake and medication adjustments.

Dr. G introduces Peculiar Podiatry with a deep dive into the "purple toe"—a visual clue that can mean anything from a simple bruise to dangerous arterial or venous problems, infection, or neuropathy, especially in people with diabetes. This episode explains how to evaluate timing, pain, pulses, position changes, and when urgent vascular or emergency care is needed.

Dr. G explores how capsaicin, the active compound in chili peppers, can reduce burning neuropathic pain by overactivating and desensitizing pain-sensing nerves. The episode explains that capsaicin is not a cure for diabetic neuropathy or a treatment for ulcers, notes differences between low‑dose creams and the 8% prescription patch, and highlights safety precautions (apply only to intact skin, avoid eyes/mucous membranes, and have trained clinicians administer high‑dose patches).

Prediabtes isn’t “ Almost Diabetes” . This episode explains how type 2 diabetes often begins years before diagnosis as prediabetes — a compensatory metabolic state where insulin resistance, pancreatic stress, liver overproduction of glucose, and visceral fat-driven inflammation quietly disrupt glucose control. You’ll learn the diagnostic thresholds (A1c 5.7–6.4%, fasting glucose 100–125 mg/dL, 2‑hour OGTT 140–199 mg/dL), why different tests can identify different people, who should be tested, and which clinicians to involve (PCP, endocrinologist, dietitian, diabetes prevention programs). The episode emphasizes prevention: lifestyle-based diabetes prevention programs can reduce progression, metformin is not automatic, and early action can change your metabolic trajectory — protecting overall health and reducing future foot and limb complications.

This episode explains what "stump shrinkage" really means—residual limb volume changes, edema, tissue remodeling, and how different amputation levels affect function and prosthetic fitting. It outlines practical management steps: compression and dressing strategies, wound and vascular monitoring, prosthetic planning, physical therapy, and the extra vigilance required for people with diabetes to protect the remaining limb and restore mobility.

This episode explores why some diabetic foot ulcers remain inflamed yet fail to clear microbes, distinguishing contamination, colonization, local infection, and clinical infection. It explains how immune dysregulation, neutrophil extracellular traps (NETs), macrophage dysfunction, biofilm, ischemia, hypoxia, neuropathy, and necrotic tissue create an ecosystem that prevents healing. The episode emphasizes that antibiotics alone are not enough: effective care requires assessing perfusion, offloading, debridement, glycemic and systemic management, targeted antimicrobials when indicated, and ongoing surveillance to change the wound trajectory.