?Pes Planus? is the medical term for flat feet. It comes from Latin, Pes = foot and Planus = plain, level ground. Very few people suffer from this condition, as a true flat foot is very rare. Less than 5% of the population has flat feet. The majority of the Australian population, however, has fallen arches (an estimated 60-70% of the population) known in the medical profession as ?excess pronation? or over-pronation. Over-pronation means the foot and ankle tend to roll inwards and the arch collapses with weight-bearing. This is a quite a destructive position for the foot to function in and may cause a wide variety of foot, leg and lower back conditions.
Acquired "Flat Feet" this develops over a period of time rather than at birth (unlike Congenital "Flat Feet"). In children, many different factors may contribute to the development of this condition such as the type of shoes that a child wears, a child's sitting or sleeping positions or it may occur as some type of compensation for other abnormalities located further up the leg. Compensation may occur due to the rupture (tearing) of ligaments or tendons in the foot. One common reason for this condition is that the foot is compensating for a tight Achilles Tendon. If this tendon is tight it may cause the foot to point downward away from the body. This gives the body the perception that the affected leg is longer in length and the body attempts to compensate for the perceived additional length by flattening out the foot arch in an attempt to provide balance and stability.
It is important to note that pronation is not wrong or bad for you. In fact, our feet need to pronate and supinate to achieve proper gait. Pronation (rolling inwards) absorbs shock and supination (rolling outwards) propels our feet forward. It is our body?s natural shock-absorbing mechanism. The problem is over-pronation i.e. the pronation movement goes too deep and lasts for too long, which hinders the foot from recovering and supinating. With every step, excess pronation impedes your natural walking pattern, causing an imbalance in the body and consequent excessive wear and tear in joints, muscles and ligaments. Some common complaints associated with over-pronation include Heel Pain (Plantar Fasciitis) ,Ball of foot pain, Achilles Tendonitis, Shin splints, Knee Pain, Lower Back Pain.
Look at the wear on your shoes and especially running trainers; if you overpronate it's likely the inside of your shoe will be worn down (or seem crushed if they're soft shoes) from the extra strain.
Non Surgical Treatment
Treatment with orthotics will provide the required arch support to effectively reduce excessive pronation and restore the foot and its posture to the right biomechanical position. It should be ensured that footwear has sufficient support, for example, shoes should have a firm heel counter to provide adequate control.
The MBA implant is small titanium device that is inserted surgically into a small opening between the bones in the hind-mid foot: the talus (ankle bone) and the calcaneus (heel bone). The implant was developed to help restore the arch by acting as a mechanical block that prevents the foot from rolling-in (pronation). In the medical literature, the success rate for relief of pain is about 65-70%. Unfortunately, about 40% of people require surgical removal of the implant due to pain.