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David G. Armstrong

@dgarmstrong.bsky.social
266 followers 69 following 4.8K posts

Here's to helping people move through their world a little better. #ActAgainstAmputation #DiabeticFoot #WoundHealing #IoT #ToeandFlow #Diabetes Distinguished Prof. of Surgery and Neurological Surgery at USC

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David G. Armstrong @dgarmstrong.bsky.social · 59m
Giving Healing a Foothold: A New Randomized Trial of OFM-HA in the Diabetic Foot #ActAgainstAmputation diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 1h
Quantifying and Communicating the Severe Outcomes of Diabetic Foot Disease in Type 2 Diabetes including Amputation, Cardiovascular Events, and Death #ActAgainstAmputation @ALPSlimb diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 3h
From Foot to Fatality: The DiabeticFootAttack Is Real #ActAgainstAmputation #Mortality
diabeticfootonline.com
From Foot to Fatality: The #DiabeticFootAttack Is Real, and It’s Worse Than You Think @alpslimb #ActAgainstAmputation - DF Blog
- A new single-center study from the Netherlands quantifies the devastating outcomes of the diabetic foot attack: only 48.5% wound closure, 46% major amputation by 12 months, 26% one-year mortality, and 12-month amputation-free survival of just 39.7%. Time is tissue. Our colleagues at St Antonius Hospital in Nieuwegein, the Netherlands, led by Olaf Bakker, have just published a sobering paper in the Journal of Plastic, Reconstructive & Aesthetic Surgery that quantifies what many of us have felt in our bones for years: the diabetic foot attack (DFA) is a devastating clinical event with outcomes that A new single-center study from the Netherlands quantifies the devastating outcomes of the diabetic foot attack: only 48.5% wound closure, 46% major amputation by 12 months, 26% one-year mortality, and 12-month amputation-free survival of just 39.7%. Time is tissue. - -
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David G. Armstrong @dgarmstrong.bsky.social · 4h
Evaluating the effects of sedentary behaviour on plantar skin health in people with diabetes diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 5h
In September 2026 David G. Armstrong received the WUWHS Lifetime Achievement Award and fellowship honor — shared with the patients, mentors, students, colleagues, and global community behind the work. diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 6h
2026-05-15 From Fragmented Clinical Trials to AI-Native Execution www.youtube.com/watc...
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David G. Armstrong @dgarmstrong.bsky.social · 7h
Barriers to Prevention and Timely Presentation of Diabetic Foot Ulcers: Perspectives of Patients from a High-risk Urban Population in the United States diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 8h
Reimagining Senior Safety with Radar, AI, and Proactive Detection www.youtube.com/watc...
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David G. Armstrong @dgarmstrong.bsky.social · 9h
Biomechanical modelling of diabetic foot ulcers: A computational study diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 10h
Reduced Mortality: GLP-1s and the Dream Team Changing the DFU Game #ActAgainstAmputation #Mortality #GLP1
diabeticfootonline.com
Reduced Mortality: Why GLP-1s and the “Dream Team” of Podiatry, Diabetes Care, and Opthalmology Are Changing the DFU Game @DiabetesCareADA #ActAgainstAmputation #Survival - DF Blog
- We’ve known for a long time that a diabetic foot ulcer (DFU) isn’t just a wound on the bottom of a foot—it’s a massive red flare for a patient’s overall health. But a recent nationwide study in Diabetes Care just put some sobering, and ultimately hopeful, numbers behind that reality. The data from this massive We’ve known for a long time that a diabetic foot ulcer (DFU) isn’t just a wound on the bottom of a foot—it’s a massive red flare for a patient’s overall health. But a recent nationwide study in Diabetes Care just put some sobering, and ultimately hopeful, numbers behind that reality. The data from this massive We’ve known for a long time that a diabetic foot ulcer (DFU) isn’t just a wound on the bottom of a foot—it’s a massive red flare for a patient’s overall health. But a recent nationwide study in Diabetes Care just put some sobering, and ultimately hopeful, numbers behind that reality. The data from this massive - -
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David G. Armstrong @dgarmstrong.bsky.social · 10h
The Next Frontier in Remote Health: Wearable Fluid Monitoring Explained www.youtube.com/watc...
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David G. Armstrong @dgarmstrong.bsky.social · 11h
One in Four by Twelve Weeks, One in Ten Amputated by Thirty-Two: The Diabetic Foot Consortium Just Handed Us the Real Denominator #DFU #ActAgainstAmputation #ALPSLimb #NIDDK diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 13h
A Systematic Review and Narrative Synthesis of Risk Prediction Tools Used to Estimate Mortality, Morbidity, and Other Outcomes Following Major Lower Limb Amputation diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 14h
Discover the latest findings on offloading interventions for people with diabetes-related foot ulcers. This systematic review and meta-analysis provides valuable insights into the effectiveness of these interventions. #DiabetesFootUlcers #MedicalResearch #ActAgainstAmputation
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David G. Armstrong @dgarmstrong.bsky.social · 16h
Same Clinic Room, 27 Years Apart: Our Daughter Just Graduated Chief Resident Where It All Began #LimbPreservation #ActAgainstAmputation #ToeAndFlow #UTSA diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 23h
The Hurricane Returns: Revisiting an Incision for Limb Preservation Salvage in Calcanectomy #ActAgainstAmputation #DiabeticFoot diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 02/10/2026
Co-Creating the Foot Selfie– in Peru! A Patient-Centered App to Prevent Diabetic Foot Ulcers — Built With, Not For #FootSelfie #ActAgainstAmputation #DiabeticFoot #GlobalHealth @usc_vascular @alpslimb diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 02/10/2026
The ZIP Code Lottery: 15 Years of Evidence One Solvable Crisis #ActAgainstAmputation #Amputation #Disparities
diabeticfootonline.com
The ZIP Code Lottery: 15 Years of Evidence, One Solvable Crisis #ActAgainstAmputation - DF Blog
- In 2009, California hospitals collectively documented 7,973 lower-extremity amputations in diabetic adults. Dr. Carl Stevens at Harbor-UCLA decided to ask a question most people in medicine had quietly avoided: where do these patients live? The answer, published five years later in Health Affairs, was the kind of finding that is simultaneously obvious in retrospect and In 2009, California hospitals collectively documented 7,973 lower-extremity amputations in diabetic adults. Dr. Carl Stevens at Harbor-UCLA decided to ask a question most people in medicine had quietly avoided: where do these patients live? The answer, published five years later in Health Affairs, was the kind of finding that is simultaneously obvious in retrospect and In 2009, California hospitals collectively documented 7,973 lower-extremity amputations in diabetic adults. Dr. Carl Stevens at Harbor-UCLA decided to ask a question most people in medicine had quietly avoided: where do these patients live? The answer, published five years later in Health Affairs, was the kind of finding that is simultaneously obvious in retrospect and - -
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Is an Exoskeleton Suit in Your Future? #WearableRobots diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
A FEW Paths Forward: Food-Energy-Water Nexus & Data Centers | Natalie Armstrong | C2SHiP ThinkTank www.youtube.com/watc...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
@USC Limb Preservation Program gets $1.43 million Dept. of Defense grant @KeckMedUSC
diabeticfootonline.com
@USC Limb Preservation Program gets $1.43 million Dept. of Defense grant @KeckMedUSC - DF Blog
- VIA Keck School News The USC Limb Preservation Program has been awarded an 18-month, $1.43 million grant from the Department of Defense to support an innovative wound-healing program. The group will be studying the effects of stimulating the spleen in people with catastrophic tissue loss to promote the release of anti-inflammatory cells and cytokines. The VIA Keck School News The USC Limb Preservation Program has been awarded an 18-month, $1.43 million grant from the Department of Defense to support an innovative wound-healing program. The group will be studying the effects of stimulating the spleen in people with catastrophic tissue loss to promote the release of anti-inflammatory cells and cytokines. The VIA Keck School News The USC Limb Preservation Program has been awarded an 18-month, $1.43 million grant from the Department of Defense to support an innovative wound-healing program. The group will be studying the effects of stimulating the spleen in people with catastrophic tissue loss to promote the release of anti-inflammatory cells and cytokines. The - -
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
The Smart Insole That Prevents 86% of Diabetic Foot Ulcers (DFUs) www.youtube.com/watc...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
More evidence for “renal foot” angiographic findings and outcomes diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Look Into My Eyes to See My Sole: A Retinal AI Score Tracks Amputation Risk #ActAgainstAmputation diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
2026-04-24 Current and Future Challenges in Systems Engineering of Intelligent System
youtube.com
Current and Future Challenges in Systems Engineering of Intelligent System
Current and Future Challenges in Systems Engineering of Intelligent System: from hype to practice using examples from medical device development Speaker: Michael Kremliovsky Bio: Michael Kremliovsky started his academic career in astrophysics and continued in computational topology, complex systems
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Silent and Sinister: Severe Coronary Ischemia in DFU Patients #ActAgainstAmputation #Mortality
diabeticfootonline.com
Silent and sinister: High Prevalence of Silent, Severe Coronary Ischemia in Patients with Diabetic Foot Ulcers: New Research Insights @farkomd @jvascsurg @alpslimb - DF Blog
- A new manuscript published in the Journal of Vascular Surgery sheds light on the alarming prevalence of silent, severe coronary ischemia in patients with diabetic foot ulcers (DFU). The study, “High Prevalence of Silent, Severe Coronary Ischemia in Patients with Diabetic Foot Ulcers,” demonstrates that a significant proportion of DFU patients—without overt history of coronary artery A new manuscript published in the Journal of Vascular Surgery sheds light on the alarming prevalence of silent, severe coronary ischemia in patients with diabetic foot ulcers (DFU). The study, “High Prevalence of Silent, Severe Coronary Ischemia in Patients with Diabetic Foot Ulcers,” demonstrates that a significant proportion of DFU patients—without overt history of coronary artery A new manuscript published in the Journal of Vascular Surgery sheds light on the alarming prevalence of silent, severe coronary ischemia in patients with diabetic foot ulcers (DFU). The study, “High Prevalence of Silent, Severe Coronary Ischemia in Patients with Diabetic Foot Ulcers,” demonstrates that a significant proportion of DFU patients—without overt history of coronary artery - -
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
SCIENCE OF SPORT PARTNERSHIP WITH @MLB, @MLS AND @NBA EXCITES NEARLY 500K KIDS TO STEM @USCViterbi @ScienceBaseball diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Mixed up Macrophages: M1/M2 Dysregulation in Diabetic Foot Ulcers diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Yesterday at Keck: limb preservation at MLK Community Healthcare. Jorge Reyno, David Tobey & Myron Hall: heart (and sole). Thanks to Andrew Lee and the whole crew—total pros! ❤️ More hospital-free, activity-rich, dignity-filled days. #ActAgainstAmputation #HealOn
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Research in 60 Seconds: Limb Preservation, Wound Healing, in Diabetes ActAgainstAmputation #DiabeticFoot @ALPSlimb @USC @USC_vascular @ResearchatUSC @KeckSchool_USC diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Zero Amputations. In One of the Toughest ZIP Codes in Diabetes America. #ActAgainstAmputation diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
PMMA in the Calf to Heal a Foot? An Interesting Twist on the Masquelet Technique #ActAgainstAmputation diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Every 20 Seconds: Diabetes-Related Amputation Mapped Globally #ActAgainstAmputation #Amputation
diabeticfootonline.com
Every 20 Seconds: Diabetes-Related Amputation Is Now Mapped Globally — From ZIP Code to Planet #ActAgainstAmputation @American_Heart @ALPSlimb @APMA @VascularSVS - DF Blog
- A few weeks ago, we launched The ZIP Code Lottery — a data narrative showing how amputation rates in Los Angeles County track almost perfectly with poverty, not clinical severity. It struck a nerve. The response told us something important: people want to see the data, and they want it to be impossible to look A few weeks ago, we launched The ZIP Code Lottery — a data narrative showing how amputation rates in Los Angeles County track almost perfectly with poverty, not clinical severity. It struck a nerve. The response told us something important: people want to see the data, and they want it to be impossible to look A few weeks ago, we launched The ZIP Code Lottery — a data narrative showing how amputation rates in Los Angeles County track almost perfectly with poverty, not clinical severity. It struck a nerve. The response told us something important: people want to see the data, and they want it to be impossible to look - -
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
The Hurricane Returns: Revisiting an Incision for Limb Preservation Salvage in Calcanectomy #ActAgainstAmputation #DiabeticFoot diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 01/10/2026
Diabetic Foot in Mouth Disease?
diabeticfootonline.com
Diabetic Foot in Mouth Disease? - DF Blog
- Yet more data to support the contention that different matrices are deleteriously and similarly affected by this silent sinister syndrome Proportion and severity of periodontitis and correlation of periodontal inflamed surface area with glycemic status in type 2 diabetic neuropathy patients with and without diabetic foot Background The association between diabetic neuropathy with and without Yet more data to support the contention that different matrices are deleteriously and similarly affected by this silent sinister syndrome Proportion and severity of periodontitis and correlation of periodontal inflamed surface area with glycemic status in type 2 diabetic neuropathy patients with and without diabetic foot Background The association between diabetic neuropathy with and without Yet more data to support the contention that different matrices are deleteriously and similarly affected by this silent sinister syndrome Proportion and severity of periodontitis and correlation of periodontal inflamed surface area with glycemic status in type 2 diabetic neuropathy patients with and without diabetic foot Background The association between diabetic neuropathy with and without - -
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
An explainable machine learning model for predicting in‐hospital amputation rate of patients with diabetic foot ulcer diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
🏆 95,000+ Citations: Limb Preservation is a Team Sport #Shorts www.youtube.com/watc...
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
Thermometry reduces risk for reucleration in remission– in patients who reduce their activity diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
Rethinking Mildly Infected DFU: Lessons from Cancer Taxonomy #ActAgainstAmputation #Cancer
diabeticfootonline.com
Rethinking mildly infected diabetic foot ulcers: lessons from Gleason and cancer taxonomy #ActAgainstAmputation - DF Blog
- Inspired by much recent discussion as well as a blog post from 13 years ago, here is a manuscript just published. After further discussion with Prof. Ben Lipsky, he raises the interesting idea of calling some of these "infection in situ" just like cancer in situ. Inspired by much recent discussion as well as a blog post from 13 years ago, here is a manuscript just published. After further discussion with Prof. Ben Lipsky, he raises the interesting idea of calling some of these "infection in situ" just like cancer in situ. Inspired by much recent discussion as well as a blog post from 13 years ago, here is a manuscript just published. After further discussion with Prof. Ben Lipsky, he raises the interesting idea of calling some of these "infection in situ" just like cancer in situ. - -
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
🧪 Moderate vs Severe DFI: Biomarkers Say Split Them #Shorts www.youtube.com/watc...
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
The Census and the Core Sample: #STEADY, DARE-DiaFoot, and How We #MeasureWhatWeManage in the #DiabeticFoot
diabeticfootonline.com
The Census and the Core Sample: #STEADY, DARE-DiaFoot, and How We #MeasureWhatWeManage in the #DiabeticFoot - DF Blog
- Two diabetic foot data engines published the same day on two continents. STEADY (US) is a 5,000-patient, AI-enabled real-world registry; DARE-DiaFoot (Italy) is a deep, multi-instrumental phenotyping protocol that quietly studies remission. One is the census, the other the core sample. Together with EURODIALE, the U.S. Wound Registry, and the National Diabetes Foot Care Audit, they sketch a blueprint for finally measuring what we manage. Two papers landed on the same day, on two continents, and if you squint they are the same paper wearing different lab coats. One is a census. The other is a core sample. Put them side by side and you get a working blueprint for the thing we keep saying we want and rarely build: Two diabetic foot data engines published the same day on two continents. STEADY (US) is a 5,000-patient, AI-enabled real-world registry; DARE-DiaFoot (Italy) is a deep, multi-instrumental phenotyping protocol that quietly studies remission. One is the census, the other the core sample. Together with EURODIALE, the U.S. Wound Registry, and the National Diabetes Foot Care Audit, they sketch a blueprint for finally measuring what we manage. - -
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
Reimagining Mobility: Continuous Neural Control of Bionic Limbs #Prosthetics #BelowKnee @naturemedicine diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
HEART MONITORING AT HOME: Dave Albert on the Wearable Tech Revolution (FEATURING @Alivecor) www.youtube.com/watc...
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
Pay For Performance Reduces Incident Ulceration, Amputation, Death in the Diabetic Foot: Nationwide Study
diabeticfootonline.com
Pay For Performance Reduces Incident Ulceration, Amputation, Death in the Diabetic Foot: Nationwide Study - DF Blog
- A key Taiwanese nationwide study suggests that focusing on quality can improve outcomes. See for yourself: A nationwide cohort investigation on pay-for-performance and major adverse limb events in patients with diabetes A nationwide cohort investigation on pay-for-performance and major adverse limb events in patients with diabetes Highlights The nationwide population-base investigation unlinked vascular benefit of A key Taiwanese nationwide study suggests that focusing on quality can improve outcomes. See for yourself: A nationwide cohort investigation on pay-for-performance and major adverse limb events in patients with diabetes A nationwide cohort investigation on pay-for-performance and major adverse limb events in patients with diabetes Highlights The nationwide population-base investigation unlinked vascular benefit of A key Taiwanese nationwide study suggests that focusing on quality can improve outcomes. See for yourself: A nationwide cohort investigation on pay-for-performance and major adverse limb events in patients with diabetes A nationwide cohort investigation on pay-for-performance and major adverse limb events in patients with diabetes Highlights The nationwide population-base investigation unlinked vascular benefit of - -
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
Check out this work on implementing a patient-centered remote wound monitoring system for managing diabetic foot ulcers. This technology can greatly improve patient outcomes and quality of life. #diabetes #healthtech #RemotePatientMonitoring #DiabeticFoot #WoundHealing
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
Check out this fascinating article www.jmir.org/2026/1/e112911
jmir.org
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
Cutting the Cord: Oral Cefadroxil Holds Its Own for Gram-Positive Bacteremia—and Osteomyelitis diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
Spooky Action at a Distance: Neuromodulation for Limb Preservation #ActAgainstAmputation #Innovation #LimbPreservation
diabeticfootonline.com
“Spooky Action at a Distance”: The Most Comprehensive Review Yet of Physiologic Neuromodulation for Limb Preservation #ActAgainstAmputation #Neuromodulation #SpinalCordStimulation #CLTI @BurnsTrauma @KeckSchool_USC @ResearchatUSC @USC - DF Blog
- Our new paper in Burns and Trauma presents the most comprehensive review yet of spooky action at a distance therapies for diabetic limb preservation — from spinal cord stimulation and splenic ultrasound to remote ischemic conditioning and tibial transport. Five modalities, three mechanistic pathways, one shared destination: tissue repair at a distance. Einstein famously derided quantum entanglement as "spukhafte Fernwirkung" — spooky action at a distance. He could not accept that measuring one particle could instantaneously influence another, no matter how far apart. The idea offended his sense of how the universe should work. We borrowed that phrase — and that productive skepticism — for what may Our new paper in Burns and Trauma presents the most comprehensive review yet of spooky action at a distance therapies for diabetic limb preservation — from spinal cord stimulation and splenic ultrasound to remote ischemic conditioning and tibial transport. Five modalities, three mechanistic pathways, one shared destination: tissue repair at a distance. - -
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David G. Armstrong @dgarmstrong.bsky.social · 30/09/2026
CTRL-ALT-DELETE the Wound: Reboot First. Then Run the Apps – #Debridement #Reset diabeticfootonline.c...
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David G. Armstrong @dgarmstrong.bsky.social · 29/09/2026
Managing the Surge: Delayed Chronic Wound Care During COVID-19 @AJMC_Journal @USC @USC_vascular @ALPSlimb @APMA @SVS #ActAgainstAmputation
diabeticfootonline.com
Managing the Surge: Delayed Chronic Wound Care During COVID-19 @AJMC_Journal @USC @USC_vascular @ALPSlimb @APMA @SVS #ActAgainstAmputation - DF Blog
- This just published in the American Journal of Managed Care (AJMC) detailing our collective experience treating high-risk patients with COVID19 A growing body of research, as well as first-hand accounts from clinicians on the ground, indicate that a significant percentage of patients with chronic wounds have delayed preventative and emergent wound care during the COVID-19 This just published in the American Journal of Managed Care (AJMC) detailing our collective experience treating high-risk patients with COVID19 A growing body of research, as well as first-hand accounts from clinicians on the ground, indicate that a significant percentage of patients with chronic wounds have delayed preventative and emergent wound care during the COVID-19 This just published in the American Journal of Managed Care (AJMC) detailing our collective experience treating high-risk patients with COVID19 A growing body of research, as well as first-hand accounts from clinicians on the ground, indicate that a significant percentage of patients with chronic wounds have delayed preventative and emergent wound care during the COVID-19 - -
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