DHC orthotic – Deep heel cup orthotic provides ultimate rear foot control
What is a Flat Foot?
A ‘flat foot’ is as the name suggests a foot with a reduced arch which appears ‘flat’. A foot may be so flat the complete sole of the foot may touch the ground.
The correct anatomical name for a flat foot is a ‘pes planus’ foot posture.
Why do people have flat feet?
There are a number of reason why people might have a flat foot
What is the problem with having flat feet?
There is nothing wrong with having a flat foot but in some people it can result in a number of long term problems. These include:
- Tibialis posterior tendon overuse –
This is because the position of the foot changes the demand from certain muscle groups.
- Dorsal Midfoot compressionSimilar to a keystone bridge when the arch collapses there is greater
dorsal compression of the midfoot
- Sinus tarsi pain
When the foot is neutral the sinus tarsi is aligned and there is no compression of the tissues. When the foot is flat or pronated the sinus tarsi is compressed and can cause pain (sinus tarsi syndrome.
- Ankle Arthrtitis
- Great toe joint dysfunction
In a normal arched foot the 1st metatarsal is plantar flexed. This allows the great toe to function normally and there is no jamming.
In a flat arched foot the 1st metatarsal is dorsiflexed. This causes dorsal jamming of the great toe
Orthotic Treatment of flat feet?
There are a number of different orthotic designs available for flat feet. Most orthotic designs are simply arch supports.
These are not ideal for the flat foot, often only irritating the arch of the foot.
This is due to the subtalar joint axis position. The diagram below shoes the axis of the subtalar joint.
The most appropriate design for a flat foot is a DHC (Deep Heel Cup) rearfoot orthotic this type of orthotic applies pressure on the red area which increases the arch of the foot without causing discomfort as with most midfoot orthotics.
DHC orthotic – Deep heel cup orthotic provides ultimate rear foot cont
Expert Podiatrists for the treatment of Flat Feet servicing the areas of Northcote, Thornbury, Fitzroy, North Fitzroy, Carlton, North Carlton, Alphington, Fairfield, Brunswick, Coburg and Preston
Call The Ankle and Foot Centre in Northcote for further advice on professional management and treatment options.