Feet are supposed to roll inward as a part of every step you take. This helps them to mold to the various terrain that they step on (sand, rocks, various obstacles) without injury. This is called pronation. But, when your feet roll inward excessively, problems often arise. Excessive inward rolling of the feet and ankles is called over-pronation. Sometimes, people who over-pronate are told they have ?flat feet?. The term ?flat feet? can be misleading. When standing, body weight causes the arch of most feet to flatten out somewhat. This does not mean they become flat like pancakes (though some feet do). Instead, the arch shape gets longer and flatter and the arch height gets lower.
In adults, the most common reason for the onset of Over-Pronation is a condition known as Post Tibial Tendonitis. This condition develops from repetitive stress on the main supporting tendon (Posterior Tibial Tendon) of the foot arch. As the body ages, ligaments and muscles can weaken. When this occurs the job of providing the majority of the support required by the foot arch is placed upon this tendon. Unfortunately, this tendon cannot bear the weight of this burden for too long. Eventually it fatigues under the added strain and in doing so the foot arch becomes progressively lower over a period of time.
Overpronation causes alterations in proper muscle recruitment patterns leading to tightness in the outside of the ankle (lateral gastrocnemius, soleus, and peroneals). This tightness can lead to weakness in the opposing muscles such as the medial gastrocnemius, anterior tibialis, and posterior tibialis. If these muscles are weak, they will not be able to keep the knee in proper alignment, causing the valgus position. All this tightness and weakness can cause pain within the ankle, calf, and knee region. And it can send imbalance and pain all the way up to the upper back, if deep core strength is lacking and can't hold the pelvis in neutral.
To easily get an idea of whether a person overpronates, look at the position and condition of certain structures in the feet and ankles when he/she stands still. When performing weight-bearing activities like walking or running, muscles and other soft tissue structures work to control gravity's effect and ground reaction forces to the joints. If the muscles of the leg, pelvis, and feet are working correctly, then the joints in these areas such as the knees, hips, and ankles will experience less stress. However, if the muscles and other soft tissues are not working efficiently, then structural changes and clues in the feet are visible and indicate habitual overpronation.
Non Surgical Treatment
There are exercises that you can do to help deal with the effects and treat the cause. Obviously you can opt for an insert into your shoe either by way of your sports shop or go see a podiatrist. Like anything in your body that is not working correctly; you will have to manage your condition. Don't put off dealing with the problem as it will manifest associated issues along the alignment and as far up as your neck. If it's mild pronantion, I suggest running barefoot. If you can't do this then don't wear shoes at all at home or in the office as much as possible. Give your calf muscles a huge stretch everyday as these with the ligaments from the foot up to the muscle get tight and are linked to your pain. Loosen your calf muscles as much as possible. Great exercise is to sit barefoot with a marble on the floor in front of you. Grab the marble with your toes and try to hold it tight in the middle of the base of your foot. Ping pong balls and even golf balls work. Do this each night and combined with calf stretches you'll start to correct the muscle alignment gradually in the foot. Put more attention into massaging your feet, standing with a good posture, stretching your feet, ankles and calf muscles. Lastly, if you are fat this will not help at all. You must lose weight swimming, cycling and eradicating sugar and fat from your diet. The added strain on the foot by being a fat body compounds the problems and inhibits corrective results that you are after.
HyProCure implant. A stent is placed into a naturally occurring space between the ankle bone and the heel bone/midfoot bone. The stent realigns the surfaces of the bones, allowing normal joint function. Generally tolerated in both pediatric and adult patients, with or without adjunct soft tissue procedures. Reported removal rates, published in scientific journals vary from 1%-6%.
Bunions (hallux valgus) are often described as a bump on the side of the big toe. But a bunion is more than that. The visible bump actually reflects changes in the bony framework of the front part of the foot. With a bunion, the big toe leans toward the second toe, rather than pointing straight ahead. This throws the bones out of alignment, producing the bunion's "bump." Bunions are a progressive disorder. They begin with a leaning of the big toe, gradually changing the angle of the bones over the years and slowly producing the characteristic bump, which continues to become increasingly prominent. Bunions can be painful, but not always. Bunions are always progressive, so the deformity becomes more prounced over time, even if its not painful.
What causes bunions? This question is often answered by blaming shoes. But in fact, shoes only play a small role in developing bunions. Yes, shoes, especially high heels cause abnormal squeezing of your forefoot. This in turn to help promote a bunion. But if everyone who wore high heels shoes had a bunion, there would be a lot more then the 15% prevalence we see in the general population. As you can see from the flow chart, genetics plays the major role in development of bunion deformities. Genetics determines the way your foot functions. Are you flatfooted? Are your joints flexible or stiff? Do you have a high arch? Do you have tight muscles? These traits are determined by your genetic code. These characteristics then govern how your bones and joints move when you walk. As an example, if your joints are very flexible, this can cause an abnormal amount of instability in your forefoot when you walk. Over time, this abnormal motion will cause the a bunion to develop by allowing your first metatarsal to "drift" towards the mid-line of your body.
No matter what stage your bunion is in, you can be in pain. Though bunions take years to develop, you can experience pain at any stage. Some people don?t have bunion pain at all. Pain from a bunion can be severe enough to keep you from walking comfortably in normal shoes. The skin and deeper tissue around the bunion also may become swollen or inflamed.
X-rays are the best way to determine the amount of deformity of the MTP joint. Blood work may be required to rule out other diseases that may be associated with bunions such as rheumatoid arthritis. Other tests such as bone scans or MRI's are not usually required.
Non Surgical Treatment
Nonsurgical treatments such as rest and wearing loose (wider) shoes or sandals can often relieve the irritating pain of bunions. Walking shoes may have some advantages, for example, over high-heeled styles that pressure the sides of the foot. Anti-inflammatory medications, such as acetylsalicylic acid (aspirin, Ecotrin), ibuprofen (Advil, Children's Advil/Motrin, Medipren, Motrin, Nuprin, PediaCare Fever) and naproxen (Anaprox, Naprelan, Naprosyn, Aleve), can help to ease inflammation as well as pain. Local cold-pack application is sometimes helpful as well. To reduce tension on the inner part of the joint of a bunion, stretching exercises are sometimes prescribed. Depending on the structure of the foot and severity of the bunion, custom insole orthotics can slow the progression of the bunion and address underlying biomechanical causes. Inflammation of the joint at the base of the big toe can often be relieved by a local injection of cortisone. Any signs of skin breakdown or infection can require antibiotics. When the measures above are effective in relieving symptoms, patients should avoid irritating the bunion again by optimizing footwear and foot care.
When these above measures no longer help to relieve the pain in the big toe, surgery to correct the bunion deformity is considered. Numerous surgical procedures have been recommended for bunions. What is most critical is that the type of deformity is carefully evaluated, because one bunion surgery cannot be used for all types of bunions. If the big toe joint is rotated out of place, the joint must be rotated back in place for the procedure to work. Conversely, a bunion can occur with the big toe still ?in place.? If surgery is considered, the bunion must be corrected with the toe joint left in its current position. In other words, one type of bunion repair does not work for everyone. In all types of bunion repairs, ligaments and tendons (soft tissues) around the big toe joint are reconstructed, to allow the toe to be straightened. Most bunion procedures also require cutting the metatarsal bone, which is then fixed with metal screws to hold the bone in position until it heals. It usually takes 2 to 4 months to fully recover from bunion surgery, which is why it is always the last course of treatment.