Evaluating the Competency of Your Diabetic Foot Treatment Team: Essential Skill #2: Testing for Diabetic Peripheral Neuropathy in the Feet.

Evaluating the Competency of Your Diabetic Foot Treatment Team: Essential Skill #2: Testing for Diabetic Peripheral Neuropathy in the Feet.

In these discussions, we discuss each of the 7 essential skills that your diabetes treatment team must use in order to help you prevent an amputation related to your diabetes.

Today we will discuss essential skill number two.

2. Test for neuropathy to help determine the risk of ulceration and amputation.

In the simplest of terms, nerves are the wiring system of the body. They carry information from the outer reaches of the body (such as the hands and feet) all the way back to the brain where this information is processed. One thing that wires and nerves have in common is that they both transmit electrical signals. However, it is probably not a surprise that by comparison, electrical wiring system is significantly simpler than a nervous system.

There are a number of processes that happen within the body that can affect the function of nerves. In the diabetic patient in particular, this includes the way the body is using insulin, levels of blood sugar, levels of circulating lipids (or fats in the blood), blood supply to the nerves themselves, and energy metabolism with in the nerve cells that make up an individual nerve.

Although there are many different processes which can damage nerves, high circulating levels of blood sugar are likely the most damaging. In the United States, diabetic peripheral neuropathy (nerve damage in the feet related to high levels of blood sugar) is the most common type of sensory nerve damage.

Although the nervous system is very complex, checking for nerve damage can be remarkably simple. The most reliable test in order to evaluate whether or not a diabetic patient is at risk of developing neuropathic ulceration that might lead to hospitalization or amputation of the leg can be done in only a few minutes and at very low cost. Because of this, it is absolutely inexcusable that a doctor treating a diabetic would not evaluate the function of the nerves in the feet.

In addition to being low cost and simple to perform, there is one test that is the most useful of all exams in determining whether or not a patient is at risk of developing a problem that might lead to a diabetic foot amputation.

This test is called the Semme’s-Weinstein 5.07 monofilament test. In this test, a 5.07 mm diameter monofilament wire is used to apply precisely 10 grams of pressure to the skin of the diabetic foot in order to determine whether or not
the patient has what is known as “protective sensation”.

During this test, the doctor will ask you to close your eyes. He or she will then touch different parts of your feet with this monofilament asking you to say “right” or “left” whenever the doctor touches either of your feet.

If you can feel every area where the doctor touches your feet, you are at low risk of developing a diabetic foot ulceration that might lead to amputation.

If you do have some loss of sensation, the damage is usually at the ends of the longest nerves in the body. The longest nerves of course happen to go from the spinal cord all the way down the legs and out to the end of the toes. Because of this, the damage seems to appear in what doctors call a “stocking glove distribution pattern.” This means that the damage occurs starting the end of the toes and will usually stop in the same area on both feet as if one has rolled socks on to both feet at the same time.

For example, someone may have lost all of the sensation in the toes, but has all of the station present in the ball of the foot. This means that the patient is at risk of having an open sore develop in the toes but less likely in the midfoot or ball of the foot.

Because this can get worse over time, it provides a good baseline to determine if the diabetic foot problems are staying the same or getting worse.

The implications of this test are that if you have lost “protective sensation,” you are at high risk of starting to develop a blister and not being able to feel that there is a problem. The patients that have this sort of nerve damage will oftentimes step on foreign objects such as splinters, thumbtacks, or slivers of glass and never even noticed that anything has happened. It is this type of open sore that can rapidly develop into an infected diabetic ulceration and later lead to a diabetic foot amputations.

There are a number of other tests that can be used to evaluate the function of the nerves in the diabetic foot. Simply touching a specific type of vibrating tuning fork to the feet and ankles can get a great deal of information about early nerve damage that may be present but not yet concerning for the kind of damage that can lead to open sores.

Other screening tests that your doctor might use include checking hot/cold sensation, two-point discrimination, and evaluating light touch sensation. Nerve conduction velocity exams are more invasive tests and should be reserved for those with indications of problems such as tarsal tunnel syndrome.

Even if there is nerve damage, the open sores that result primarily from existing nerve damage are still mostly preventable. It just requires a little extra vigilance on the part of the patient and the doctor.

If there is only one screening test is performed your doctor evaluating your risk of foot problems that could lead to an amputation, it is the SWMF 5.07 test. For this reason, you must make sure that your diabetic foot doctor checks your feet initially to determine your risk of developing the sort of problems.

Only then will you know whether or not you are at imminent risk of and amputation.


Dr. Christopher Segler is an author, inventor and award winning diabetic foot surgeon. After discovering how diabetic leg amputations resulted from inadequate patient education, it became his passion to teach strategies to stop diabetic amputation. You can learn more by requesting your FREE report “No Leg Left To Stand On: The Secrets Insurance Companies Don’t Want You To Know About Diabetic Foot Amputation” at http://www.ineedmyfeet.com.

Evaluating the Competency of Your Diabetic Foot Treatment Team: Essential Skill #1: Assessing the Circulation to the Feet and Legs.

In these discussions, we discuss each of the 7 essential skills that your diabetes treatment team must use in order to help you prevent an amputation related to your diabetes.

Today we will discuss essential skill number one.

1. Assess the circulation (blood flow) to the feet and legs to determine the risk of gangrene.

There is a long-held joke among podiatrists that the only function of the heart is to pump the blood to the feet. The suggestion with this is the over-emphasis on the importance of delivering oxygenated blood to the tissues in the feet in order to keep a diabetic patient from developing a problem that might lead to premature death.

It is a well-researched fact that diabetics develop problems with their blood flow at a much faster rate than other people. This happens everywhere in the body. Through the process known as atherosclerosis (or hardening of the arteries) blood vessels become lined with plaques that are deposited over time. As these deposits increase, the diameter of the inside of the blood vessel becomes smaller and smaller, effectively decreasing blood flow.

This has been well documented in the coronary arteries of diabetic patients. We know that if you take two patients (one who is diabetic and one who is not) who are otherwise identical, the patient who has diabetes is four times more likely to have a heart attack. In large part this is due to the accelerated rate of atherosclerosis.

This same process occurs in the arteries of the feet and legs. Because of this process, the blood flow to the feet is dramatically reduced over time. Without blood flow, there is no oxygen delivered to the tissues. Without oxygen tissues die. Gangrene is nothing more than death of the tissue. Gangrene is one of the leading causes of amputation among diabetic patients.

With all of this is in mind, it is very easy to understand why your doctor must assess the blood flow to your feet. There are many ways to do so.

The simplest tests (and those most likely to be performed by any doctor evaluating a diabetic patient’s blood flow to the feet) involve a simple physical examination. During this exam, the doctor will likely attempt to feel the pulses behind the inside of your ankles (posterior tibial artery pulses) and on the tops of your feet (dorsalis pedis artery pulses). If the clinician is able to feel these pulses easily, the chances of developing extraordinarily bad blood flow known as critical limb ischemia are very small.

If the clinician is unable to feel these pulses, a hand-held Doppler device will typically be used in order to further evaluate the blood flow. This is a simple easy to perform test that does not cause any discomfort to the patient and can give a great deal of information about the state of blood flow.

More extensive tests are sometimes needed. Other tasks include transcutaneous oxygen pressure measurements (Tcp02), toe Doppler wave form analysis and toe pressures, and arterial duplex ultrasound.

If the results of these studies show severely compromised blood flow, it may be necessary to perform other more expensive exams including computed tomography angiography or magnetic resonance angiography. These are tests that use either CT scans are MRI evaluations to closely evaluate the state of blood flow in the feet and legs. They can provide an extraordinary amount of information but are oftentimes difficult to get approved by insurance companies due to their extraordinary cost.

The combined results of all of these exams are considered closely with the patient’s history, other physical exam findings and symptoms. In many cases all that is needed is continued monitoring of the patient. However, if findings warrant rapid intervention, it may be necessary to have an angioplasty or arterial stent placement in the leg in order to restore blood flow by a vascular surgeon. Other times an open arterial bypass is sometimes needed.

One thing that is clear is that delays in evaluation of the blood flow to the feet and legs can create huge problems. The most obvious of these would be development of gangrene as a result of critical limb ischemia that would make an amputation necessary.

The bottom line is that any doctor evaluating a diabetic patient should check (at the bare minimum) the pulses in both feet. If you see your diabetic doctor and the he/she does not ask you to take off of your shoes to evaluate the pulses in your feet, you should immediately find another doctor.


Dr. Christopher Segler is an author, inventor and award winning diabetic foot doctor. After discovering how amputations resulted from a failing health care system, it became his passion to teach strategies to stop diabetic amputation. If you have diabetes, you can learn more by requesting your FREE report “No Leg Left To Stand On: The Secrets Insurance Companies Don’t Want You To Know About Diabetic Foot Amputation” at http://www.ineedmyfeet.com.

7 Essential Skills Your Diabetes Treatment Team Must Have

A recent publication was released in e-Plasty, an open access journal of plastic surgery. The subject matter of this article contain new guidelines for treating physicians (who may or may not be experts in diabetic foot disorders) to prevent amputations among diabetic patients.

We know that diabetes worldwide is becoming an epidemic. In the United States the growing population of diabetic patients is now almost 26 million. Because more and more doctors are being forced to take care of diabetic patients, guidelines are needed to provide guidance and standards to help all treating medical professionals understand the steps to take and ensure their patient doesn’t unnecessarily wind up with a diabetic below knee amputation.

This article cited seven essential skills that are absolutely necessary in order to provide the very best outcomes in terms of diabetic limb salvage.

1. Assess the circulation (blood flow) to the feet and legs to determine risk of gangrene.
2. Test for neuropathy to help determine risk of ulceration and amputation.
3. Obtain wound cultures to determine if any dangerous organisms such as MRSA are present. Use appropriate culture techniques.
4. Evaluate the depth and character of the wound. (Perform a wound assessment that includes both staging/grading of infection and ischemia.)
5. If necessary, be prepared to surgical drain any infection or surgically remove any dead tissue (gangrene) at the bedside (debridement).
6. Be prepare to evaluate the cultures and change the antibiotics to most effectively fight the bacteria causing the infection.
7. Continually re-evalauet after surgery, noting the risk of recurring problems in order to avoid re-ulceration, re-hospitalization, and re-amputation of the diabetic foot.

Over the next week or so, we will discuss each of these in depth.

Dr. Christopher Segler believes diabetic amputations are preventable. He teaches strategies that help his clients avoid amputation. He is also and award-winning diabetic foot surgeon, inventor and author. If you have diabetes, you can learn how to avoid amputation by more by requesting your FREE report “No Leg Left To Stand On: The Secrets Insurance Companies Don’t Want You To Know About Diabetic Foot Amputation” at http://www.ineedmyfeet.com.