Orthotics, also known as orthoses, refers to any
device inserted into a shoe, ranging from felt pads to custom-made
shoe inserts that correct an abnormal or irregular, walking
pattern. Sometimes called arch supports, orthotics allow
people to stand, walk, and run more efficiently and comfortably.
While over-the-counter orthotics are available and may help people
with mild symptoms, they normally cannot correct the wide range of
symptoms that prescription foot orthoses can since they are not
custom made to fit an individual's unique foot structure.
Orthotic devices come in many shapes, sizes, and materials and fall into three main categories: those designed to change foot function, those that are primarily protective in nature, and those that combine functional control and protection.
Rigid Orthotics
Rigid orthotic devices are designed to control function and are
used primarily for walking or dress shoes. They are often composed
of a firm material, such as plastic or carbon fiber. Rigid
orthotics are made from a mold after a podiatrist takes a plaster
cast or other kind of image of the foot. Rigid orthotics control
motion in the two major foot joints that lie directly below the
ankle joint and may improve or eliminate strains, aches, and pains
in the legs, thighs, and lower back.
Soft Orthotics
Soft orthotics are generally used to absorb shock, increase
balance, and take pressure off uncomfortable or sore spots. They
are usually effective for diabetic, arthritic, and deformed feet.
Soft orthotics are typically made up of soft, cushioned materials
so that they can be worn against the sole of the foot, extending
from the heel past the ball of the foot, including the toes. Like
rigid orthotics, soft orthotics are also made from a mold after a
podiatrist takes a plaster cast or other kind of image of the
foot.
Semi-Rigid Orthotics
Semi-rigid orthotics provide foot balance for walking or
participating in sports. The typical semi-rigid orthotic is made up
of layers of soft material, reinforced with more rigid materials.
Semi-rigid orthotics are often prescribed for children to treat
flatfoot and in-toeing or out-toeing disorders.
These orthotics are also used to help athletes mitigate pain while
they train and compete.