Everyone pronates! Contrary to popular misconception it is healthy and normal. The problem begins when one or both of our feet pronate too much. When the arches flex too far inward or stay collapsed
for too long pronation is considered excessive. We call this overpronation. Overpronation is by far the most common foot type. Pronation is not linked one-to-one with low arches. Although pronation
lowers the arches, this does not mean that only those with low arches overpronate. People with high arches can also overpronate! Some of us have always overpronated, for others overpronation develops
with age, weight gain, regular standing work or intensive exercise.
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.
Overpronation may have secondary effects on the lower legs, such as increased rotation of the tibia, which may result in lower leg or knee problems. Overpronation is usually associated with many
overuse injuries in running including medial tibial stress syndrome, or shin splints, and knee pain Individuals with injuries typically have pronation movement that is about two to four degrees
greater than that of those with no injuries. Between 40% and 50% of runners who overpronate do not have overuse injuries. This suggests that although pronation may have an effect on certain injuries,
it is not the only factor influencing their development.
Do the wet foot test. Get your feet wet and walk along a paved surface or sand and look at the footprints you leave. If you have neutral feet you will see a print of the heel with a thin strip
connecting to your forefoot, but if you're overpronating your foot print will look a bit like a giant blob with toes.
Non Surgical Treatment
Anti-Pronation Insoles provide a unique foot support system that aligns the lower body. The major cause of foot and leg pain is over pronation (rolling over of the feet) which causes excessive
pressure on the muscles, ligaments and bones of the lower body. Running insoles treat the underlying cause of over pronation and prevent future occurrences of the associated foot or leg condition. A
project conducted at the NIKE Sport Research Laboratory studied the effects of orthotics on rear foot movement in running. Nine well-trained runners who wore orthotics were chosen as subjects. The
results of the study indicated that orthotics reduced rear foot movement by roughly one degree or approximately nine percent of the amount found in runners not using orthotics. The average reduction
of the maximum velocity of pronation was fifteen percent. Thus this study indicates that orthotics and insoles control over pronation which will treat and prevent many sporting injuries.
Subtalar Arthroereisis. The ankle and hindfoot bones/midfoot bones around the joint are fused, locking the bones in place and preventing all joint motion. This may also be done in combination with
fusion at other joints. This is a very aggressive option usually reserved for extreme cases where no joint flexibility is present and/or the patient has severe arthritic changes in the joint.