Over-pronation is very common and affects millions of Australians. To better understand this condition, we’ll take a closer look at the 3 most common foot types. An estimated 70% of the population has fallen arches (or a low arch). Only 20% have a normal arch. And 10% have abnormal feet, in other words they either have flat feet or the opposite, a high arched foot. Most of us have a low arch. The foot actually appears quite normal and a clear (but low) arch is present under the foot, especially when sitting down. The situation changes with weight-bearing: when we get up the arch lowers. When we start walking the arches collapse and the ankles roll inwards. This is called over-pronation or fallen arches. Over-pronation is not the same as flat feet as often noted.
Generally fallen arches are a condition inherited from one or both parents. In addition, age, obesity, and pregnancy cause our arches to collapse. Being in a job that requires long hours of standing and/or walking (e.g. teaching, retail, hospitality, building etc) contributes to this condition, especially when standing on hard surfaces like concrete floors. Last, but not least unsupportive footwear makes our feet roll in more than they should.
Overpronation can lead to injuries and pain in the foot, ankle, knee, or hip. Overpronation puts extra stress on all the bones in the feet. The repeated stress on the knees, shins, thighs, and pelvis puts additional stress on the muscles, tendons, and ligaments of the lower leg. This can put the knee, hip, and back out of alignment, and it can become very painful.
At some point you may find the pain to much or become frustrated. So what are you options? Chances are your overpronation has led to some type of injury if there’s pain. Your best bet is to consult with someone who knows feet. Start with your pediatrist, chiropodist or chiropractor. They’ll be able to diagnose and treat the injury and give you more specific direction to better support your feet. One common intervention is a custom foot orthotic. Giving greater structural support than a typical shoe these shoe inserts can dramatically reduce overpronation.
Non Surgical Treatment
Podiatrists are trained to effectively detect and management over-pronation. You can get a referral to a podiatrist from your GP if you are presenting with the pain typical of over-pronation, or you can seek private podiatric care in anyone of several registered and accredited practices across the country. Your podiatrist will examine your foot and its shape to determine whether or not over-pronation is the cause of your pain. If your podiatrist determines that it is a problem with arch support that is giving you trouble, then they can effectively remedy that lack of support with orthotics.
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.