Fallen Arches Causes, Indications And Therapy

Overview



The most common arch problem is the flat foot. This sometimes starts in childhood or may gradually develop in adulthood. In most cases the flat foot is related to a tight calf. The tightness of the calf forces the foot to overpronate (the inside of the foot rolls inwards) and the arch to break down and collapse. The arch collapse leads to abnormal stress on the plantar fascia leading to heel pain, as well as to the main medial tendon (the posterior tibial tendon), leading to tendonitis and even tears of the tendon. The other common symptom in severe flat feet is pain on the outside of the foot as well as calf and Achilles symptoms.




Causes

Genetic predisposition. Faulty foot mechanics, e.g. excessive pronation. Abnormal bony architecture. Laxity of ligaments. Neuro-muscular disease. Trauma to the leg muscles or major tendons. Inflammatory diseases of the joints e.g. Rheumatoid arthritis. Surgical procedures on the leg and ankle. Limb length inequality. Tight Achilles tendon.




Symptoms

A significant number of people with fallen arches (flat feet) experience no pain and have no problems. Some, however, may experience pain in their feet, especially when the connecting ligaments and muscles are strained. The leg joints may also be affected, resulting in pain. If the ankles turn inwards because of flat feet the most likely affected areas will be the feet, ankles and knees. Some people have flat feet because of a developmental fault during childhood, while others may find that the problem develops as they age, or after a pregnancy. There are some simple devices which may prevent the complications of flat feet.




Diagnosis

It is important for people with foot pain to know if they have flat feet. The following tests can help you determine your arch type. When you get out of a swimming pool, look at your footprint on the concrete. The front of the foot will be joined to the heel by a strip. If your foot is flat, then the strip is the same width as the front of the foot, creating a footprint that looks like a stretched out pancake. With a normal arch, the strip is about half the width of the front of the foot. If you have a high arch, only a thin strip connects the front of the foot with the heel. Put your shoes on a flat table and view them at eye level from behind. See if the sole is worn evenly. A flat foot will cause more wear on the inside of the sole, especially in the heel area. The shoe will easily rock side to side. A flat foot will also cause the upper part of the shoe to lean inward over the sole. Both shoes should wear about the same way. If you have pain in one foot, you should make sure you don't have a fallen arch on that side. There are two good tests you can perform at home to detect this problem. Place your fingertips on a wall that you are directly facing and stand on your tiptoes on one foot. If you can't do it, a fallen arch may be the culprit. Stand with your feet parallel. Have someone stand in back of you and look at your feet from behind. You can also do it yourself if you stand with your back to a mirror. Normally, only the pinky toe is visible from behind. If one foot is flatter than the other, the 4th and sometimes the 3rd toe on that foot can also be seen.




Non Surgical Treatment

Orthotics. Interpod orthotics re-align and support the foot; therefore reducing any excessive stress when walking or during activity. Orthotics can assist with maintaining arch profile and allow for more effective functioning of joints. Footwear. A strong supportive, well fitted shoe may assist with reducing excessive pronation and support the joints of your feet. A supportive shoe will also help maximise the function of your Interpod orthotic. Padding may be applied to your shoes or feet by your practitioner to reduce excessive stress. Specific taping techniques can be applied by your practitioner to improve foot function. Your practitioner may advise certain stretches or exercises to assist with maintaining foot function and reduce painful symptoms. Pain medication such as NSAIDs (ibuprofen) may be advised by your practitioner. If all conservative options have been exhausted, then surgical correction of flat feet may be undertaken.




Surgical Treatment



Feet that do not respond to the treatments above may need surgery. The surgery will help to create a supportive arch.




Prevention

Flatfeet in children are often an inherited family trait, but it may be possible to prevent the condition in some cases. Recent research has shown that there are several social or cultural factors that can cause flatfeet. These factors include the following, obesity, overweight, unnecessary orthopedic treatments, wearing rigid shoes at a young age, In 1992, a study in India of 2300 children aged 4-13 demonstrated a significant difference in the rate of flatfeet among those who wore shoes regularly and those who did not. In this study, wearing inflexible, closed-toe shoes in early childhood was shown to have a negative effect on the normal development of arches. Children who were allowed to go barefoot or who wore light sandals and slippers had a much lower rate of flatfeet. In 1999, a study in Spain of 1181 children aged 4-13 revealed that the use of orthopedic shoes for treatment of flatfeet in children not only failed to correct the problem, but actually worsened the condition by preventing the normal flexing and arch development of bare or lightly protected feet. Finally, in 2006, a study of 835 children aged 3-6 showed significant differences in the rate of flatfeet based on weight, with normal-weight children having lower rates of flatfeet than children who were overweight or obese. Among adults, flatfeet due to injury, disease, or normal aging are not preventable. However, when flatfeet are related to lifestyle factors, such as physical activities, shoe selection, and weight gain, careful attention to these factors may prevent the development of flatfeet.




After Care

Patients may go home the day of surgery or they may require an overnight hospital stay. The leg will be placed in a splint or cast and should be kept elevated for the first two weeks. At that point, sutures are removed. A new cast or a removable boot is then placed. It is important that patients do not put any weight on the corrected foot for six to eight weeks following the operation. Patients may begin bearing weight at eight weeks and usually progress to full weightbearing by 10 to 12 weeks. For some patients, weightbearing requires additional time. After 12 weeks, patients commonly can transition to wearing a shoe. Inserts and ankle braces are often used. Physical therapy may be recommended. There are complications that relate to surgery in general. These include the risks associated with anesthesia, infection, damage to nerves and blood vessels, and bleeding or blood clots. Complications following flatfoot surgery may include wound breakdown or non-union (incomplete healing of the bones). These complications often can be prevented with proper wound care and rehabilitation. Occasionally, patients may notice some discomfort due to prominent hardware. Removal of hardware can be done at a later time if this is an issue. The overall complication rates for flatfoot surgery are low.