One of the main postural deviations that cause pain and injury in the foot and ankle area (and resultant compensations in the rest of the body) is overpronation. Pronation is a normal function that occurs when the foot rolls inward toward the midline of the body. This movement causes the heel to collapse inward and the medial arch of the foot to elongate and flatten. Overpronation, however, is when the foot collapses too far inward for normal function. Consequently, this directly affects the ability of the foot to perform and can disrupt proper functioning through the entire body.
It is important to identify the cause of overpronation in order to determine the best treatment methods to adopt. Not all treatments and preventative measures will work equally well for everyone, and there may be a little trial and error involved to get the best treatment. A trip to a podiatrist or a sports therapist will help you to establish the cause of overpronation, and they will be able to tell you the best treatments based on your specific degree of overpronation and the cause. Overpronation has many causes, with the most common reasons for excessive pronation listed, low arches, flexible flat feet, fallen arches, gait abnormalities, abnormal bone structure, abnormal musculature, bunions, corns and calluses.
If you overpronate, your symptoms may include discomfort in the arch and sole of foot, your foot may appear to turn outward at the ankle, your shoes wear down faster on the medial (inner) side of your shoes. Pain in ankle, shins, knees, or hips, especially when walking or running are classic symptoms of overpronation. Overpronation can lead to additional problems with your feet, ankles, and knees. Runners in particular find that overpronation can lead to shin splints, tarsal tunnel syndrome, plantar fasciitis, compartment syndrome, achilles tendonitis, bunions or hallux valgus, patello-femoral pain syndrome, heel spurs, metatarsalgia.
Look at your soles of your footwear: Your sneaker/shoes will display heavy wear marks on the outside portion of the heel and the inside portion above the arch up to the top of the big toe on the sole. The "wet-foot" test is another assessment. Dip the bottom of your foot in water and step on to a piece of paper (brown paper bag works well). Look at the shape of your foot. If you have a lot of trouble creating an arch, you likely overpronate. An evaluation from a professional could verify your foot type.
Non Surgical Treatment
No matter what the cause in your case, over pronation can be remedied in several ways. Those who are overweight should consider permanently losing weight to naturally alleviate pressure on the ligaments and heel of the foot. Also, you should consult a podiatrist to examine your posture and movement habits. You may be reinjuring yourself due to poor alignment without even knowing it. If you also have lower back problems, this could be a sign of over pronation as a result of misalignment.
Calcaneal "Slide" (Sliding Calcaneal Osteotomy) A wedge is cut into the heel bone (calcaneus) and a fixation device (screws, plate) is used to hold the bone in its new position. This is an aggressive option with a prolonged period of non-weightbearing, long recovery times and many potential complications. However, it can and has provided for successful patient outcomes.