Flat feet can also develop as an adult ("adult acquired flatfoot") due to injury, illness, unusual or prolonged stress to the foot, faulty biomechanics or as part of the normal aging process. This is most common in women over 40 years of age. Known risk factors include obesity, hypertension and diabetes.Flat feet can also occur in pregnant women as a result of temporary changes, due to increased elastin (elasticity) during pregnancy. However, if developed by adulthood, flat feet generally remain flat permanently.
Footwear: shoes which limit toe movement; high heels. Barefoot walking may be protective. A tight Achilles tendon or calf muscles (heel cord contracture). This may help to cause Pes Planus, or may contribute to symptoms such as foot pain when there is existing Pes Planus. Obesity. Other bony abnormalities, eg rotational deformities, tibial abnormalities, coalition (fusion) of tarsal bones, equinus deformity. Ligamentous laxity, eg familial, Marfan's syndrome, Ehlers-Danlos syndrome, Down's syndrome. Other factors causing foot pronation, eg hip abductor weakness and genu valgum.
Most patients who suffer from flat feet or fallen arches often do not complain of any symptoms whatsoever. However, on some occasions, patients may find that their feet are fatigued fairly easily and following activity on long periods of standing may have a painful foot or arch. On occasions, swelling may be seen on the inner aspect of the foot and performing certain movements may be painful and difficult. Some patients who have flat feet may find that their feet tend to roll in (over-pronate) a lot more when they walk and run. As a result, they may experience damage to the ankle joint and the Achilles tendon, as well as excessive shoe wear.
Determining whether you have fallen arches may be as easy as looking at the shape of the middle bottom of your foot. Is there any kind of arch there? If you cannot find any kind of arch, you may have a flat foot. There are, however, other ways to decide in case you're still not sure. Another way to figure out if you have flat feet is to look at a few pairs of your shoes. Where do you see the most wear on the heels? If you notice significant wear in the heel and the ball of the foot extending to the big toe, this means you are overpronating. Overpronators roll their feet too far inward and commonly have fallen arches. To figure out if you have flat feet, you can also do an easy test. Get the bottoms of your feet wet and then step on to a piece of paper carefully. Step off the paper and take a look at the print your foot made. If your print looks like the entire bottom of a foot, your feet are flat. People with an arch will be missing part of the foot on their print since the arch is elevated off of the paper. Regular visits to your podiatrist are highly recommended.
Non Surgical Treatment
Most cases of flatfeet do not require treatment. However, if there is pain, or if the condition is caused by something other than normal development, there are several treatment options. Self-care options include rest, choosing non-weight-bearing exercise (e.g., swimming, cycling), weight loss, and avoiding high heels. Flexible flatfeet with some pain can be relieved with the use of orthotics-shoe inserts that support the arch-and/or heel wedges (in some cases). If pronation is a factor, special shoes can be worn that lift the arch and correct the inward leaning. Physical therapy may also be prescribed to stretch or lengthen the heel cord and other tendons. For rigid or inflexible flatfeet, treatment varies depending on the cause. Tarsal coalition if often treated with rest and the wearing of a cast. If this is ineffective, surgery can be done to separate the bones or to reset the bones into a correct position. If the flatfoot is caused by an injury to the tendons in the foot or ankle, rest, anti-inflammatory medications (e.g., ibuprofen), and the use of shoe inserts and ankle braces often relieve symptoms. In severe cases, surgery is performed to repair the tendon or to fuse some joints in the foot into a corrected position to reduce stress on the tendon. The prognosis after surgery is generally good. Complications include pain and some loss of ankle motion, especially when trying to turn the foot in or out. This may be improved with physical therapy.
Surgical procedures for flat feet vary depending on the root cause of the condition. Surgical correction to control pronation may include bone implants or Achilles tendon lengthening. Tendon transfer, which is a procedure to re-attach a tendon to another area of bone, may also be used to reduce pronation and improve foot function.
Well-fitted shoes with good arch support may help prevent flat feet. Maintaining a healthy weight may also lower wear and tear on the arches.