Understanding Diabetic Foot Disease

Diabetes mellitus creates a uniquely hostile environment for the feet through three interconnected mechanisms: peripheral neuropathy (loss of protective sensation), peripheral arterial disease (compromised blood flow and healing capacity), and immune dysfunction (impaired response to infection). When protective sensation is lost, patients cannot feel pressure sores, blisters, or early wounds — minor injuries that a healthy patient would notice and address go undetected until they have progressed to ulceration or deep infection.

The consequences are severe: diabetic foot ulcers are the leading cause of non-traumatic lower-extremity amputations worldwide, with up to 85% of amputations preceded by a foot ulcer.[1] Yet research consistently demonstrates that the vast majority of these amputations are preventable through structured preventive care — regular foot examination, appropriate footwear, custom accommodative orthotics to redistribute plantar pressures, patient education, and early wound management.[2] The key is proactive intervention before the first ulcer, not reactive care after.

At EvenKeel, Dr. Santopietro provides comprehensive diabetic foot care including thorough annual examinations with vascular and neurological screening, custom orthotics, callus and nail management, and immediate evaluation of any wound or change in foot status. The goal is to keep every diabetic patient ambulatory, ulcer-free, and informed.

Custom accommodative orthotics are an important part of diabetic foot care. EvenKeel does not bill insurance for orthotics. If you wish to seek reimbursement for custom orthotics as a diabetic patient, you may need to seek care through a provider holding a Medicare Durable Medical Equipment (DME) agreement — we do not fault our patients who make that choice, and we are happy to help you find a qualified DME provider.
Signs & Symptoms

Warning Signs to Watch For

Many diabetic foot complications develop silently due to neuropathy. Knowing what to look for — and when to call us immediately — can prevent minor issues from becoming limb-threatening emergencies.

Numbness & Tingling
Peripheral neuropathy typically begins with numbness, tingling, or a "pins and needles" sensation in the toes and forefoot.
Loss of Protective Sensation
Inability to feel light touch, temperature extremes, or pain — the foot cannot warn of danger.
Skin Changes & Dryness
Autonomic neuropathy causes dry, cracked skin and absent sweating — entry points for bacteria.
Callus Formation
Heavy calluses at pressure points (metatarsal heads, heel) indicate abnormal loading and precede ulceration.
Wound or Ulcer
Open sores that fail to heal within 2 weeks require immediate professional evaluation; not all are painful.
Color & Temperature Changes
Red, warm foot (early Charcot) or pale, cool foot (arterial disease) both require urgent assessment.
Causes & Risk Factors

How Diabetic Foot Complications Develop

Diabetic foot disease is a cascade of interrelated problems — understanding the mechanisms helps patients take the right preventive steps before complications arise.

  • Chronic hyperglycemia causing progressive nerve damage (peripheral neuropathy)
  • Reduced arterial perfusion (peripheral arterial disease) impairing healing
  • Elevated plantar pressures from structural deformity (hammertoes, bunions, Charcot foot)
  • Minor trauma undetected due to sensory loss (ill-fitting shoes, foreign objects)
  • Fungal nail infections and interdigital tinea providing bacterial entry points
  • Immune suppression reducing ability to fight local infection
  • Poor glycemic control perpetuating all of the above mechanisms
High-Risk Patient Profile
  • HbA1c persistently above 7% — poor glycemic control
  • Diabetes duration > 10 years
  • Peripheral neuropathy (documented or suspected)
  • Prior foot ulcer or amputation — highest risk group
  • Visual impairment limiting self-inspection
  • Living alone with limited access to care
  • Nephropathy (kidney disease) — indicates severe systemic diabetes
Treatment Approach

A Proactive, Structured Care Plan

Dr. Santopietro's diabetic foot care program is built around prevention, early detection, and immediate response — keeping patients ambulatory and ulcer-free for the long term.

1
Comprehensive Annual Foot Exam
Neurological screening (10-gram monofilament, vibration, reflex testing), vascular assessment (pulses, skin perfusion), structural exam, and skin/nail evaluation. Risk stratification determines follow-up frequency.
2
Custom Accommodative Orthotics & Diabetic Footwear
Total-contact orthotics redistribute peak plantar pressure, protecting high-risk areas. Appropriate depth shoes with seamless liners minimize friction. Medicare coverage is coordinated when applicable.
3
Nail & Callus Care
Regular professional debridement of calluses and nail care prevents the most common precursors to ulceration in neuropathic patients.
4
Patient Education
Patients learn daily self-inspection, appropriate footwear selection, safe bathing temperatures, and the critical threshold for calling us (any wound, blister, or color change).
5
Wound Evaluation & Triage
Any open wound is evaluated promptly. Depth, size, infection status, and vascular status determine the care plan; referral for vascular evaluation or wound care specialist involvement is coordinated when needed.
6
Coordination of Care
Diabetic foot care is a team effort. Dr. Santopietro coordinates with the patient's endocrinologist, primary care physician, and vascular surgeon as needed to ensure comprehensive management.
Clinical References

Evidence Base

Armstrong DG, Boulton AJM, Bus SA. "Diabetic foot ulcers and their recurrence." N Engl J Med. 2017;376(24):2367–2375.
Singh N, Armstrong DG, Lipsky BA. "Preventing foot ulcers in patients with diabetes." JAMA. 2005;293(2):217–228.
Boulton AJ, Armstrong DG, Albert SF, et al. "Comprehensive foot examination and risk assessment: a report of the Task Force of the Foot Care Interest Group of the American Diabetes Association." Diabetes Care. 2008;31(8):1679–1685.
Bus SA, van Deursen RW, Armstrong DG, et al. "Footwear and offloading interventions to prevent and heal foot ulcers and reduce plantar pressure in patients with diabetes: a systematic review." Diabetes Metab Res Rev. 2016;32(Suppl 1):99–118.
Lavery LA, Armstrong DG, Wunderlich RP, Tredwell J, Boulton AJ. "Predictive value of foot pressure assessment as part of a population-based diabetes disease management program." Diabetes Care. 2003;26(4):1069–1073.

Protect Your Feet. Protect Your Mobility.

Diabetic foot complications are largely preventable. A comprehensive annual exam and the right footwear plan can make all the difference — schedule yours today.

Book an Appointment Call 617.734.0003