What Is Pes Planus?

Overview

Adult Acquired Flat Foot

he belly isn't the only part of your body subject to middle-age spread. As we get older, the years of walking and standing can cause feet to spread and flatten out as ligaments that support the arch lose their holding power. The result: the condition known as fallen arches, or flat feet. "Keep in mind that we're talking about 26 bones in the foot that are supported by a series of ligaments, muscle tendons and other connective tissue," says Glenn Gastwirth, D.P.M., deputy executive director of the American Podiatric Medicine Association in Bethesda, Maryland. "Over a period of time, the ligaments stretch out or 'give' under the pressure of your weight-especially if you're overweight. So what usually happens is you go shopping for new shoes one day and suddenly realize that you now need a size 8 when you've always worn a size 6. You may think your foot has grown, but what really happens is that the foot has spread out, both in width and length."




Causes

There are several factors that can contribute to the development of fallen arches. These factors include the following. Genetic abnormality, torn or stretched tendons, amage to the posterior tibial tendon, bone fractures, dislocation of bones, nerve damage, rheumatoid arthritis and other medical conditions. In addition, there are other factors that can increase your risk of developing fallen arches. These risk factors include diabetes, pregnancy, Obesity and Aging.




Symptoms

The majority of children and adults with flexible flatfeet never have symptoms. However, their toes may tend to point outward as they walk, a condition called out-toeing. A person who develops symptoms usually complains of tired, aching feet, especially after prolonged standing or walking. Symptoms of rigid flatfoot vary depending on the cause of the foot problem. Congenital vertical talus. The foot of a newborn with congenital vertical talus typically has a convex rocker-bottom shape. This is sometimes combined with an actual fold in the middle of the foot. The rare person who is diagnosed at an older age often has a "peg-leg" gait, poor balance and heavy calluses on the soles where the arch would normally be. If a child with congenital vertical talus has a genetic disorder, additional symptoms often are seen in other parts of the body. Tarsal coalition. Many people have no symptoms, and the condition is discovered only by chance when an X-ray of the foot is obtained for some other problem. When symptoms occur, there is usually foot pain that begins at the outside rear of the foot. The pain tends to spread upward to the outer ankle and to the outside portion of the lower leg. Symptoms usually start during a child's teenage years and are aggravated by playing sports or walking on uneven ground. In some cases, the condition is discovered when a child is evaluated for unusually frequent ankle sprains. Lateral subtalar dislocation. Because this often is caused by a traumatic, high-impact injury, the foot may be significantly swollen and deformed. There also may be an open wound with bruising and bleeding.




Diagnosis

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.




Non Surgical Treatment

The treatment is simple for flat feet. We will carry out a biomechanical assessment and full history, often along side a Computerised Gait Scan to give us an idea of how the foot is compensating. Treatment will be to, control how the foot hits the ground, support the middle of the foot and prevent the arch collapsing, promote normal movement in the front of the foot. The ability to do this will be dictated by the movement within the foot to start with. Treatment for all the above problems are often combined with a physiotherapy session in order to help develop a stretching and strengthening program for the back of the legs and the pelvis in order to allow normal function when the orthoses have been prescribed. If you are born with flat feet you will not grow out of them - if you get orthoses, like glasses you will need them for the rest of your life if you want to correct the mechanics in your foot. In 95% of cases, orthoses will reduce symptoms by at least 85%. In the other 5% we will work with them to get them to this level.




Surgical Treatment

Flat Foot

Fallen arches may occur with deformities of the foot bones. Tarsal coalition is a congenital condition in which the bones of the foot do not separate from one another during development in the womb. A child with tarsal coalition exhibits a rigid flat foot, which can be painful, notes the patient information website eOrthopod. Surgery may prove necessary to separate the bones. Other foot and ankle conditions that cause fallen arches may also require surgery if noninvasive treatments fail to alleviate pain and restore normal function.




Prevention

Going barefoot, particularly over terrain such as a beach where muscles are given a good workout, is good for all but the most extremely flatfooted, or those with certain related conditions such as plantar fasciitis. Ligament laxity is also among the factors known to be associated with flat feet. One medical study in India with a large sample size of children who had grown up wearing shoes and others going barefoot found that the longitudinal arches of the bare footers were generally strongest and highest as a group, and that flat feet were less common in children who had grown up wearing sandals or slippers than among those who had worn closed-toe shoes. Focusing on the influence of footwear on the prevalence of pes planus, the cross-sectional study performed on children noted that wearing shoes throughout early childhood can be detrimental to the development of a normal or a high medial longitudinal arch. The vulnerability for flat foot among shoe-wearing children increases if the child has an associated ligament laxity condition. The results of the study suggest that children be encouraged to play barefooted on various surfaces of terrain and that slippers and sandals are less harmful compared to closed-toe shoes. It appeared that closed-toe shoes greatly inhibited the development of the arch of the foot more so than slippers or sandals. This conclusion may be a result of the notion that intrinsic muscle activity of the arch is required to prevent slippers and sandals from falling off the child?s foot.