What is an Orthotic?
Foot Orthotics allow the muscles, tendons and bones of the feet through open and closed chain joint migration, up through the legs, hip and lower back, to function at their optimal potential for our body weight, structure, walking pattern and life styles.
When appropriately prescribed and more importantly, appropriately manufactured, Foot Orthotics can decrease pain and discomfort in the foot, ankles, knees, hips and back. Foot Orthotics increase our stability, prevent further progression of bony deformities, soft tissue pain, burning and numbness and help to improve our overall quality of life in our activities of daily living (ADLs).
Remember, foot pain is not normal and should not be ignored. The pain in our feet often is associated with other pains in our lower limbs all due to the poor inherent biomechanics of our foot.
With a foot orthotic supporting the three main arches of the foot the muscles and tendons are able to work within their intended range of motions (ROMs) and we do not run the risk of causing injury or furthering one.
Benefits of Orthotics
Custom Foot Orthotics help in providing relief for painful foot problems or an injury, especially for those who must walk, or stand excessively on the job or in every day activities.
The mechanical properties of the Custom Foot Orthotic help to maintain the normal positioning of the bones in the foot, the joints in the ankle and knees leading up to the hips and lower back. The muscles and ligaments holding these bones in their intended anatomical positions are prevented from over stretching and becoming lax over time.
With enough functional correction from a Custom Foot Orthotic, the foot structure can be aligned to give more propulsion, making walking, running and even cycling more efficient biomechanically.
Along with aligning the foot structure, the Custom Foot Orthotic reduces muscular fatigue and helps to promote more efficient muscle performance thus enhancing performance during the gait cycle.
Below is an example of a foot without the corrective support of an orthotic and then another example of the same foot with a Custom Made Foot Orthotic from POL correcting and supporting the foot. Notice the difference a well made Custom Foot Orthotic makes!
The Structure and Function of an Orthotic
Foot Orthotics are constructed from various materials consisting of plastics, foam, rubbers, and cork composites that are utilized for their mechanical properties.
The main similarity of all Foot Orthotics is the principle of their structure. The core is comprised of a plastic material more commonly referred to as the shell. External support structures on the underside of the shell material are utilized for balance and support inside the footwear; these are commonly referred to as extrinsic posts. Soft padding is placed on the underside and the topside to absorb compression forces when walking and running, this includes the top covers, underlay materials and arch fills.
All of these materials have the goal of improving foot function and minimizing the stress forces that cause foot deformity and pain.
Dependent on the reason for the prescription of Foot Orthotics, all of the above mentioned materials can be utilized in many combinations to achieve three broad categories of Foot Orthotics:
- Those that primarily attempt to change foot function, known as functional Foot Orthotics
- Those that are mainly protective or accommodative in nature, and
- Those that combine functional control with accommodation for comfort.
Foot & Ankle Surgery · Nerve Specialist · Podiatry
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Overlapping or Underlapping Toes
As always, you can contact our office to answer any questions or concerns.
Overlapping toes are characterized by one toe lying on top of an adjacent toe. The fifth toe is the most commonly affected. Overlapping toes may develop in the unborn fetus. Passive stretching and adhesive taping is most commonly used to correct overlapping toes in infants, but the deformity usually recurs. Sometimes they can be surgically corrected by releasing the tendon and soft tissues about the joint at the base of the fifth toe. In some extreme cases, a pin may be surgically inserted to hold the toe in a straightened position. The pin, which exits the tip of the toe, may be left in place for up to three weeks.
Underlapping toes usually involve the fourth and fifth toes. (A special form of underlapping toes is called congenital curly toes). The cause of underlapping toes is unknown. It is speculated that they may be caused by an imbalance in muscle strength of the small muscles of the foot. If deformed toes are flexible, a simple release of the tendon in the bottom of the toe will allow for them to straighten. If the deformity is rigid, surgery may be needed to remove a small portion of the bone in the toe.
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