What are Functional Posted Foot Orthotics?
Unlike simple arch supports, functional posed orthotics control abnormal
position and movement of the foot. While standing or walking the heel and
midfoot are held in a more stable position. This allows the foot to function
more efficiently during weight-bearing and propulsion. This control is
often accomplished by limiting abnormal pronation of the foot. Pronation
is a complex movement involving eversion (turning out) of the heel and
forefoot. There is a corresponding internal rotation (turning in) of the
lower leg, and flattening of the arch. Ligaments become strained, and muscles
over work attempting to pull the foot into a more stable position. By controlling
abnormal pronation, functional orthotics help prevent some of the complications
of the chronically unstable foot. Functional orthotics are usually (but
not always) made from rigid plastic materials. There may be various additions,
top covers, and extensions, depending on the patient's need. They are very
comfortable, as they are custom made from plaster impressions. The posts
on a functional orthotic are wedges at the heel and midfoot, which hold
those structures in a proper angular relationship to each other and the
leg. Functional posted orthotics should only be prescribed by a properly
trained practitioner after a through biomechanical examination.
Will orthotics correct my foot problem?
Orthotics will control the position and motion of your foot. This may
prevent the development of pain and disability, and the development of
additional deformity. Orthotics will not change the underlying structure
of the adult foot. If they are not worn, abnormal function will immediately
return. In a sense they are analagous to dentures, if you remove then you
can no longer properly chew your food.
Will orthotics fit in all my shoes?
The short answer is no. Some shoes will not fit properly with an orthotic
inside. These are usually dressy shoes with a shallow heel counter (i.e
the rear part of the shoe that wraps around the heel). Women have more
fitting problems than men, due to shoe fashion. You can find dress shoe
that nicely fit an orthotic, but choices will be more limited. There are
special dress shoe orthotics that fit more easily into fashionable shoes.
Discuss with your podiatrist if these are suitable for you.
After wearing my orthotics, my legs and back were sore. Is this normal?
Some people develop discomfort in the foot, leg, or lower back when
they first start to wear orthotics. This is normal and is due to a realignment
of the whole lower extremity and pelvis. Muscles and ligaments have to
readjust to this new alignment. When they do the discomfort disappears.
Most patients never have any "break in" discomfort. When it occurs, it
usually disappears in a two or three weeks. If the discomfort occurs, it
is advisable to gradually "break in" your new orthotics. Persistent discomfort
may necessitate adjustment to your orthotics.
Are special orthotics required for sports?
Standard orthotics are proper for most activities, including sports
which do not involve excessive impact on the feet. Sports such as running,
basketball, high impact aerobics, tennis, racquet sports, and baseball,
all involve considerable ground impact. Sports orthotics are fabricated
from more resilient materials which dissipate some of this force. They
are available in a variety of forms, general purpose and those designed
for the demands of a specific sport. Most can be used for everyday activities,
but they tend to be more bulky than standard orthotics, and fit best in
running and walking shoes.