Your foot arch is your natural shock absorption system. Nature designed it so that when you put your body weight over your feet the shock is absorbed by this mechanism in order to alleviate the impact (and subsequent injuries) that would otherwise hit your feet, ankles, knees and hips. A flat foot is the most visible sign of overpronation, meaning that your arch collapses during the impact on the ground. As a consequence, your ankle twists inward and your knees overcompensates. Flat feet are a particular concern for runners, as during the running gait the arch is supposed to support on average 3 times their body weight.
The most common acquired flat foot in adults is due to Posterior Tibial Tendon Dysfunction. This develops with repetitive stress on the main supporting tendon of the arch over a long period of time. As the body ages, ligaments and muscles can weaken, leaving the job of supporting the arch all to this tendon. The tendon cannot hold all the weight for long, and it gradually gives out, leading to a progressively lower arch. This form of flat foot is often accompanied by pain radiating behind the ankle, consistent with the course of the posterior tibial tendon. Compounding matters is the fact that the human foot was not originally designed to withstand the types of terrain and forces it is subjected to today. Nowhere in nature do you see the flat hard surfaces that we so commonly walk on in present times. Walking on this type of surface continuously puts unnatural stress on the arch. The fact that the average American is overweight does not help the arch much either-obesity is a leading cause of flat feet as the arch collapses under the excessive bodyweight. Furthermore, the average life span has increased dramatically in the last century, meaning that not only does the arch deal with heavy weight on hard flat ground, but also must now do so for longer periods of time. These are all reasons to take extra care of our feet now in order to prevent problems later.
Most people do not exhibit any symptoms of flat feet, but if the condition is due to an underlying problem, symptoms can include foot pain, mainly in the arch or heel areas, difficulty standing on tiptoes, swelling that occurs on the inside of the ankle, pain in the calf, knee, hip, or lower leg area, both feet lie flat on the ground with no gap, Shoes may not fit properly, heel may tilt away from the midline of the body more than usual, absence of foot arch when standing. If you are experiencing these symptoms and have flat feet, you should consider seeing your doctor or a podiatrist immediately for an examination.
People who have flat feet without signs or symptoms that bother them do not generally have to see a doctor or podiatrist about them. However, if any of the following occur, you should see your GP or a podiatrist. The fallen arches (flat feet) have developed recently. You experience pain in your feet, ankles or lower limbs. Your unpleasant symptoms do not improve with supportive, well-fitted shoes. Either or both feet are becoming flatter. Your feet feel rigid (stiff). Your feet feel heavy and unwieldy. Most qualified health care professionals can diagnose flat feet just by watching the patient stand, walk and examining his/her feet. A doctor will also look at the patient's medical history. The feet will be observed from the front and back. The patient may be asked to stand on tip-toe while the doctor examines the shape and functioning of each foot. In some cases the physician may order an X-ray, CT (computed tomography) scan, or MRI (magnetic resonance imaging) scan.
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Non Surgical Treatment
If you have flat feet and foot pain, especially if one foot is flatter than the other, you should have an evaluation by an orthopedic surgeon . You may have a problem with the posterior tibial tendon , the main tendon that supports the arch. Factors that can contribute to this problem are obesity, diabetes , high blood pressure , certain types of arthritis and athletic overuse. In some cases a shoe insert/orthotic can be used to alleviate the symptoms of flat feet.
This is rare and usually only offered if patients have significant abnormalities in their bones or muscles. Treatments include joint fusion, reshaping the bones in the foot, and occasionally moving around tendons in the foot to help balance out the stresses (called tendon transfer). Flat feet and fallen arches are common conditions that are in most cases asymptomatic. However, in patients who do have symptoms, treatments are available that can help reduce pain and promote efficient movement. Orthotic devices are well recognised as an excellent treatment and podiatrists can offer these different treatment modalities as individualised treatments for patients.