Diabetic Foot

Diabetic Foot is a common complication of diabetes that can lead to serious health issues if not properly managed. This article provides an in-depth look at the causes, symptoms, and risk factors associated with diabetic foot. We explore effective strategies for prevention, early detection, and comprehensive management to minimize complications. Learn about the latest treatments and innovations in diabetic foot care, and how to maintain optimal foot health to enhance your quality of life while living with diabetes.

What is Diabetic Foot:

A diabetic foot ulcer is an open sore or wound that occurs in approximately 15 percent of patients with diabetes, and is commonly located on the bottom of the foot. Of those who develop a foot ulcer, six percent will be hospitalized due to infection or other ulcer-related complication.

Diabetes is the leading cause of nontraumatic lower extremity amputations in the United States, and approximately 14 to 24 percent of patients with diabetes who develop a foot ulcer have an amputation. Research, however, has shown that the development of a foot ulcer is preventable.

Symptoms to Watch For:

• Persistent pain or numbness in the feet
• Swelling or redness
• Open sores or wounds that are slow to heal
• Unusual odor or discharge
• Changes in skin color or temperature.

Prevention Strategies:

• Maintain Blood Sugar Levels: Regular monitoring and medication adherence.
• Foot Hygiene: Wash feet daily with warm water and mild soap, and dry thoroughly.
• Regular Inspections: Check your feet daily for cuts, blisters, or abnormalities.
• Proper Footwear: Wear shoes that fit well and protect your feet.
• Moisturize: Keep your skin soft and supple, but avoid applying lotion between toes.
• Professional Foot Care: Regular check-ups with a healthcare provider specializing in diabetic foot care.

How does diabetes cause foot problems?

Foot problems are common in people with diabetes. They can happen over time when high blood sugar damages the nerves and blood vessels in the feet. The nerve damage, called diabetic neuropathy, can cause numbness, tingling, pain, or a loss of feeling in your feet.

If you can’t feel pain, you may not know when you have a cut, blister, or ulcer (open sore) on your foot. A wound like that could get infected. The infection may not heal well because the damaged blood vessels can cause poor blood flow in your feet.

Having an infection and poor blood flow can lead to gangrene. That means the muscle, skin, and other tissues start to die. If you have gangrene or a foot ulcer that does not get better with treatment, you may need an amputation. This is a surgery to cut off your damaged toe, foot, or part of your leg. It may prevent a bad infection from spreading and could save your life.

But there’s a lot you can do to prevent a foot wound from becoming a major health problem.

Management and Treatment:

• Early Detection: Promptly address any foot injuries or abnormalities.
• Wound Care: Clean and dress wounds properly, using prescribed medications and dressings.
• Infection Control: Use antibiotics as directed by a healthcare professional to treat infections.
• Surgical Intervention: In severe cases, procedures to remove dead tissue or correct deformities may be necessary.
• Custom Orthotics: Utilize specially designed shoes or insoles to relieve pressure and prevent ulcers.

Diabetic Foot is a significant complication arising from diabetes, characterized by foot ulcers, infections, and in severe cases, amputation. At Havisha Healthcare, we are committed to helping you understand, prevent, and manage this condition effectively.

Who Can Get a Diabetic Foot Ulcer?

Anyone who has diabetes can develop a foot ulcer. Native Americans, African Americans, Hispanics and older men are more likely to develop ulcers. People who use insulin are at a higher risk of developing a foot ulcer, as are patients with diabetes-related kidney, eye, and heart disease. Being overweight and using alcohol and tobacco also play a role in the development of foot ulcers.

How Do Diabetic Foot Ulcers Form?

Ulcers form due to a combination of factors, such as lack of feeling in the foot, poor circulation, foot deformities, irritation (such as friction or pressure), and trauma, as well as duration of diabetes. Patients who have diabetes for many years can develop neuropathy, a reduced or complete lack of ability to feel pain in the feet due to nerve damage caused by elevated blood glucose levels over time. The nerve damage often can occur without pain and one may not even be aware of the problem. Your podiatric physician can test feet for neuropathy with a simple and painless tool called a monofilament.

Vascular disease can complicate a foot ulcer, reducing the body’s ability to heal and increasing the risk for an infection. Elevations in blood glucose can reduce the body’s ability to fight off a potential infection and also retard healing. 

What Is the Value of Treating a Diabetic Foot Ulcer?

Once an ulcer is noticed, seek podiatric medical care immediately. Foot ulcers in patients with diabetes should be treated for several reasons:

• To reduce the risk of infection and amputation
• To improve function and quality of life
• To reduce health care costs

How Should a Diabetic Foot Ulcer Be Treated?

The primary goal in the treatment of foot ulcers is to obtain healing as soon as possible. The faster the healing of the wound, the less chance for an infection.

There are several key factors in the appropriate treatment of a diabetic foot ulcer:

• Prevention of infection
• Taking the pressure off the area, called “off-loading”
• Removing dead skin and tissue, called “debridement”
• Applying medication or dressings to the ulcer
• Managing blood glucose and other health problems

Not all ulcers are infected; however, if your podiatric physician diagnoses an infection, a treatment program of antibiotics, wound care, and possibly hospitalization will be necessary.

Preventing Infection

There are several important factors to keep an ulcer from becoming infected:

• Keep blood glucose levels under tight control
• Keep the ulcer clean and bandaged
• Cleanse the wound daily, using a wound dressing or bandage
• Do not walk barefoot

Off-Loading

For optimum healing, ulcers, especially those on the bottom of the foot, must be “off-loaded.” Patients may be asked to wear special footgear, or a brace, specialized castings, or use a wheelchair or crutches. These devices will reduce the pressure and irritation to the ulcer area and help to speed the healing process.

The science of wound care has advanced significantly over the past ten years.  The old thought of “let the air get at it” is now known to be harmful to healing. We know that wounds and ulcers heal faster, with a lower risk of infection, if they are kept covered and moist. The use of full-strength betadine, peroxide, whirlpools and soaking are not recommended, as this could lead to further complications.

Applying Medication and Dressings

Appropriate wound management includes the use of dressings and topically-applied medications. These range from normal saline to advanced products, such as growth factors, ulcer dressings, and skin substitutes that have been shown to be highly effective in healing foot ulcers.

For a wound to heal there must be adequate circulation to the ulcerated area. Your podiatrist may order evaluation test such as noninvasive studies and or consult a vascular surgeon.  

Managing Blood Glucose

Tightly controlling blood glucose is of the utmost importance during the treatment of a diabetic foot ulcer. Working closely with a medical doctor or endocrinologist to accomplish this will enhance healing and reduce the risk of complications.

Surgical Options

A majority of noninfected foot ulcers are treated without surgery; however, when this fails, surgical management may be appropriate. Examples of surgical care to remove pressure on the affected area include shaving or excision of bone(s) and the correction of various deformities, such as hammertoes, bunions, or bony “bumps.”

Healing Factors

Healing time depends on a variety of factors, such as wound size and location, pressure on the wound from walking or standing, swelling, circulation, blood glucose levels, wound care, and what is being applied to the wound. Healing may occur within weeks or require several months.

How Can a Foot Ulcer Be Prevented?

The best way to treat a diabetic foot ulcer is to prevent its development in the first place. Recommended guidelines include seeing a podiatrist on a regular basis. He or she can determine if you are at high risk for developing a foot ulcer and implement strategies for prevention.

You are at high risk if you:

• Have neuropathy
• Have poor circulation
• Have a foot deformity (i.e. bunion, hammer toe)
• Wear inappropriate shoes
• Have uncontrolled blood sugar

Reducing additional risk factors, such as smoking, drinking alcohol, high cholesterol, and elevated blood glucose are important in the prevention and treatment of a diabetic foot ulcer. Wearing the appropriate shoes and socks will go a long way in reducing risks. Your podiatric physician can provide guidance in selecting the proper shoes.

Learning how to check your feet is crucial in noticing a potential problem as early as possible. Inspect your feet every day—especially between the toes and the sole—for cuts, bruises, cracks, blisters, redness, ulcers, and any sign of abnormality. Each time you visit a health care provider, remove your shoes and socks so your feet can be examined. Any problems that are discovered should be reported to your podiatrist or a medical professional as soon as possible, no matter how “simple” it may seem to you.