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.
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.
Not everyone who has flat feet experiences symptoms. Others, however, feel persistent pain in their feet and wearing shoes can prove additionally painful. Others only feel symptoms when they walk more than normal, go jogging or participate in a sport that involves running or kicking.
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.
What causes flat foot deformity?
Non Surgical Treatment
When pain results from a fallen arch, the physician may prescribe these. Rest and ice. A brace to help support the fallen arch. Physical therapy to strengthen and stretch the foot. Orthotics (arch supports) to compensate for a fallen arch. The physician may tell the patient to choose shoes that have proper arch supports and avoid non-supportive shoes such as flip-flops. If obesity contributed to the fallen arch, the patient should lose weight.
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.