Over pronation is when there is excessive or too much movement of the foot. Over pronation is a very common cause of heel pain and general pain throughout the lower extremities. This condition can often be referred to as flat feet and causes you to walk on other parts of your foot, which is what leads to serious heel and foot pain.
During our development, the muscles, ligaments, and other soft tissue structures that hold our bones together at the joints become looser than normal. When the bones are not held tightly in place, the joints are not aligned properly, and the foot gradually turns outward at the ankle, causing the inner ankle bone to appear more prominent. The foot moves in this direction because it is the path of least resistance. It is more difficult for the foot to move in the opposite direction (this is called supination). As we develop, the muscles and ligaments accommodate to this abnormal alignment. By the time growth is complete, the pronated foot is: abnormally flexible, flat, and its outer border appears raised so that as you step down you do not come down equally across the entire foot; instead, you come down mostly on the inner border of the foot. Normal aging will produce further laxity of our muscles that causes the pronation to become gradually worse.
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.Unfortunately, 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 (hallux valgus) patello femoral pain syndrome, heel spurs, metatarsalgia. You do not have to be a runner or athlete to suffer from overpronation. Flat feet can be inherited, and many people suffer from pain on a day-to-day basis. Flat feet can also be traumatic in nature and result from tendon damage over time. Wearing shoes that do not offer enough arch support can also contribute to overpronation.
The best way to discover whether you have a normal gait, or if you overpronate, is to visit a specialty run shop, an exercise physiologist, a podiatrist or a physical therapist who specializes in working with athletes. A professional can analyze your gait, by watching you either walk or run, preferably on a treadmill. Some facilities can videotape your gait, then analyze the movement of your feet in slow-motion. Another (and less costly) way is to look at the bottom of an older pair of run shoes. Check the wear pattern. A person with a normal gait will generally see wear evenly across the heel and front of the shoe. A person who overpronates will likely see more wear on the OUTside of the heel and more wear on the INside of the forefoot (at the ball). A person who supinates will see wear all along the outer edges of the shoe. You can also learn about your gait by looking at your arches. Look at the shape your wet feet leave on a piece of paper or a flat walking surface.
Non Surgical Treatment
If pronation is diagnosed before the age of five it can usually be treated in such a manner that the bones and joints will be aligned properly as growth continues. This may prevent the arch from collapsing, as well as allowing the muscles of the leg to enter the foot without twisting. With proper and early treatment, the foot will not turn out at the ankle, and the child?s gait will improve. Treatment for pronation in children may include: night braces, custom-made orthotics, and exercises. These treatments usually continue until growth is complete, and then the adult may need to wear custom-made orthotics to prevent the pronation from returning (the foot, as every other part of our body, tends to return to its original form if preventive measures are not taken). One side note: frequently, pediatricians will wait too long, hoping that the child will ?outgrow? the problem. By the time they realize that the child?s feet will not improve, it is too late to change the foot. In these cases, custom-made orthotics is used to prevent the pronation from becoming worse.
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.