| |
| |
| Because
diabetes is a systemic disease affecting many different
parts of the body, ideal case management requires
a team approach. The podiatric physician, as an
integral part of the treatment team, has documented
success in the prevention of amputations, one of
the most serious conditions that they treat. The
key to amputation prevention in diabetic patients
is early recognition and regular foot screenings,
at least annually, from a podiatric physician. At
the Michigan
Foot and Ankle Center, diabetic
foot care and limb salvage is one of our specialties.
Foot
problems are a leading cause of hospitalization
for the eight million persons in the United States
who have been identified as having diabetes mellitus.
Expenditures related to diabetic foot problems total
hundreds of millions of dollars annually. It is
estimated that 15% of all diabetics will develop
a serious foot condition at some time in their lives.
Common
problems include infection, ulceration, or gangrene
that may lead, in severe cases, to amputation of
a toe, foot or leg. Most of these problems are preventable
through proper care and regular visits to your podiatric
physician. At the Michigan
Foot and Ankle Center, we can
provide information on foot inspection and care,
proper footwear, and early recognition and treatment
of foot conditions.
Causes
of Foot Problems
Foot problems in persons with diabetes are usually
the result of three primary factors: neuropathy,
poor circulation, and decreased resistance to infection.
Also, foot deformities and trauma play major roles
in causing ulcerations and infections in the presence
of neuropathy or poor circulation. |
| |
Neuropathy
(Nerve Damage)
Your ability to detect sensations or vibration
may be diminished. Neuropathy allows injuries
to remain unnoticed and untreated for lengthy
periods of time. It may cause burning or sharp
pains in feet and interfere with your sleep.
Ironically, painful neuropathy may occur in
combination with a loss of sensation. Neuropathy
can also affect the nerves that supply the
muscles in your feet and legs. This ‘motor
neuropathy’ can cause muscle weakness or loss
of tone in the thighs, legs, and feet, and
the development of hammertoes, bunions, and
other foot deformities. |
|
. |
Poor
Circulation
Persons with diabetes often have circulation
disorders (peripheral vascular disease)
that can cause cramping in the calf or buttocks
when walking. The symptoms can progress
to severe cramping or pain at rest, with
associated color and temperature changes
(the feet may turn bright red when hanging
down and constantly feel cold). Also, the
skin may become shiny, thinned and easily
damaged. A reduction in hair growth and
a thickening of the toenails might also
be present.
Poor circulation, resulting in reduced blood
flow to the feet, restricts delivery of
oxygen and nutrients that are required for
normal maintenance and repair. Healing of
foot injuries, infection or ulceration is
affected. Peripheral vascular bypass operations
may avert lower extremity amputation |
|
|
Infection
Persons with diabetes are generally more prone
to infections than non-diabetic people. Due
to deficiencies in the ability of white blood
cells to defend against invading bacteria,
diabetics have more difficulty in dealing
with and mounting an immune response to the
infection. Infections often worsen and may
go undetected, especially in the presence
of diabetic neuropathy or vascular disease.
Often, the only sign of a developing infection
is unexplained high blood sugar, even without
fever. The combination of fever and high blood
sugar often warns of a severe infection requiring
hospitalization. Lesser degrees of infection
are often treated on an outpatient basis.
|
| |
|
|
| Ulcers
of the Foot
An ulceration or ulcer is usually a painless sore
at the bottom of the foot or top of the toes, resulting
from excessive pressure at that site. Ulcers frequently
underlie a pre-existing corn or callus that was
allowed to build up too thickly. Trauma from heat,
cold, shoe pressure, or penetration by a sharp object
are also potential causes. Neuropathy allows the
lesions to develop because the normal warning sense
of pain has been lost and they go unrecognized.
Continued pressure or walking on the injured skin
creates even further damage and the ulcer will worsen.
The open sore will frequently become infected and
may even penetrate to bone.
Treatment
relies on early recognition of the ulceration by
a podiatric physician, avoidance of weight bearing
activities such as walking, avoidance of wearing
"closed-in" shoes, and early intervention. Besides
local wound care, dressings and antibiotics, other
measures may be necessary to adequately relieve
pressure on the area. When use of crutches, a wheelchair,
or rest is not feasible, plaster casts, braces,
healing sandals, or orthoses (special shoe inserts)
can be used to protect the foot while it heals.
If circulation is inadequate to allow healing, your
podiatric physician may refer you to a vascular
surgeon for appropriate evaluation and possible
vascular reconstructive surgery.
Once
an ulcer has healed, it is important to continue
to see your podiatric physician regularly. Special
footwear and inserts may be recommended to protect
your feet and prevent new or recurrent lesions from
developing.
Foot
Surgery in the Diabetic Patient
Realizing the potential danger of foot deformities
in the diabetic patient, corrective foot surgery
is an option when you are in generally good health
and have good circulation. Most deformities progressively
worsen over time as do the effects of neuropathy
and vascular or circulatory disease. When foot deformities
cannot be managed effectively with conservative
care, surgery may be indicated.
Podiatric
surgery is often "same day" surgery under local
anesthesia to minimize potential complications.
In some cases, such as in the presence of an active
ulceration, hospitalization may be necessary to
properly monitor your postoperative progress.
Surgery
may also be required to heal an ulceration or to
eradicate some infections, especially those involving
the bone. Your cooperation is an important part
of your care. You must guard against injury
and provide the daily care necessary to maintain
the health of your feet.
Footwear Guidelines
Shoes must always fit comfortably and have adequate
width and depth for the toes. Leather shoes easily
adapt to the shape of your feet and allow them to
"breathe." Athletic shoes, jogging shoes and sneakers
are usually excellent choices if they are well fitted
and provide adequate cushioning. Your podiatric
surgeon may recommend "extra depth" shoes, custom
molded shoes to adapt to your particular needs,
or orthothics to provide cushioning and support.
|
| |
Always
check your shoes for foreign objects or torn
linings before putting them on. |
|
. |
New
shoes should be worn for only a few hours
at a time, and you should take care to inspect
your feet for any points of irritation. |
|
|
Socks
should be well fitted without seams or folds.
They should not be so tight as to interfere
with circulation. Well-padded socks can be
very protective if there is an abundance of
room in your shoes. |
| |
Avoid
wearing open-toed shoes or sandals until you
have discussed this with your podiatric surgeon. |
| |
Above
all else, do not walk with bare feet. |
Footcare
Guidelines |
| |
Inspect
your feet daily for blisters, bleeding, and
lesions between your toes. |
|
. |
Use
a mirror to see the bottom of your foot
and heel. If age or other factors hamper
self-inspection, ask someone to help you. |
|
|
Never
soak your feet unless approved by your doctor. |
| |
Avoid
temperature extremes - do not use hot water
bottles or heating pads on your feet. |
| |
Wash
your feet daily with warm, soapy water and
dry them well, especially between the toes.
|
| |
Use
a moisturizing cream or lotion daily, but
avoid getting it between the toes. |
|
. |
Do
not use acids or chemical corn removers. Do
not perform "bathroom surgery" on corns, calluses,
or ingrown toenails. |
|
|
Trim
your toenails carefully and file them gently. |
| |
Have
a podiatrist treat you regularly if you cannot
trim them yourself without difficulty. |
| |
Contact
your podiatric physician immediately if your
foot becomes swollen or is painful, or if
redness occurs. |
| |
Do
not smoke. Tobacco can contribute to circulatory
problems, which can be especially troublesome
in patients with diabetes. |
|
. |
Learn
all you can about diabetes and how it can
affect your feet. |
|
|
Regular
checkups by your podiatric physician—at least
annually—is the best way to ensure that your
feet remain healthy. |
| |
|
|
| At
the Michigan
Foot and Ankle Center, we specialize
in managing patients with diabetes. |
|
|
| |
| |
|
|
|
| |
|
|
| Livonia
|
Michigan
Foot and Ankle Center |
Southfield |
| 734-591-6612 |
www.MichiganFoot.com
|
248-353-9300
|
|
|
|
|
Copyright ©2004 Michigan
Foot and Ankle Center, PC. Allen S. Mehler, DPM. Bruce
I. Kaczander, DPM, Peter P. Galea, DPM & Joshua S.
Faley, DPM |
| |
|
|
|