If you look at an adult foot from the inside, you'll usually notice an upward curve in the middle. This is called an arch. Tendons, tight bands that attach at the heel and foot bones form the arch. Several tendons in your foot and lower leg work together to form the arches in your foot. When the tendons all pull the proper amount, then your foot forms a moderate, normal arch. When tendons do not pull together properly, there is little or no arch. This is called flat foot or fallen arch.
When flat feet develop at a later age, they are known as fallen arches. The arches may fall because the muscles supporting them are no longer able to do so. In addition the spring ligament within the foot may have lost some of its tension allowing the arch of the foot to flatten. Other conditions causing fallen arches include sudden weight gain, a nervous system injury, or a loss of sensation caused by a disease such as diabetes. Most people with fallen arches are flat on both feet.
Pain and stiffness of the medial arch or anywhere along the mid-portion of the foot. Associated discomfort within and near the ankle joint. The knees, hips, and lower back may be the primary source of discomfort. Feet may often feel tired and achy. Painful shin splints may develop with activity. Gait may be awkward.
Flat feet are easy to identify while standing or walking. When someone with flat feet stands, their inner foot or arch flattens and their foot may roll over to the inner side. This is known as overpronation. To see whether your foot overpronates, stand on tiptoes or push your big toe back as far as possible. If the arch of your foot doesn't appear, your foot is likely to overpronate when you walk or run. It can be difficult to tell whether a child has flat feet because their arches may not fully develop until they're 10 years of age.
Non Surgical Treatment
Heel cord stretching is an important part of treatment, as a tight Achilles tendon tends to pronate the foot. Orthotics (inserts or insoles, often custom-made) may be used. These usually contain a heel wedge to correct calcaneovalgus deformity, and an arch support. This is the usual treatment for flexible Pes Planus (if treatment is needed). A suitable insole can help to correct the deformity while it is worn. Possibly it may prevent progression of flat feet, or may reduce symptoms. However, the effectiveness of arch support insoles is uncertain. Arch supports used without correcting heel cord contracture can make symptoms worse. In patients with fixed Pes planus or arthropathy, customised insoles may relieve symptoms. Reduce contributing factors, wear shoes with low heels and wide toes. Lose weight if appropriate. Do exercises to strengthen foot muscles - walking barefoot (if appropriate), toe curls (flexing toes) and heel raises (standing on tiptoe).
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.