flat foot, condition of the human foot in which the entire sole rests on the ground when the person is standing. When the foot muscles are weakened or the ligaments are strained and stretched, the arch lowers, so that instead of the natural curved contour, there is flattening of the entire sole. Sometimes no discomfort accompanies flat foot. However, fallen arches may cause disalignment of other foot structures so that there is pain not only in the arch area but also in the calf muscles and sometimes as far up as the lower back; the discomfort is increased by prolonged standing. Flat foot may be inherited or may be caused by rickets, obesity, metabolic disorder, debilitating disease, or faulty footwear. Treatment and exercise directed by an orthopedic physician are sometimes advisable. Arch supports or other devices to be worn inside the shoe are often prescribed.
A Rigid Flat Foot may be congenital, where the arch never develops when growing. A Rigid Flat Foot can also be acquired due to disease processes involving inflammatory arthritis, neurological conditions such as Charcot neuro-arthropathy or trauma. A Flexible Flat Foot (fallen arches) may also be congenital where excessive pronation occurs for shock absorption. In some cases this condition may be the result of neurological disease or injury involving muscle weakness, hyper-mobile joints or ligament laxity. These conditions may allow for excessive pronation causing the arch to fall when weight bearing or during activity. Both of these foot types can result in posture mal-alignment involving the lower back, hips, knees and feet which may result in pain in those areas.
Symptoms that should be checked by a pediatrician include foot pain, sores or pressure areas on the inner side of the foot, a stiff foot, limited side-to-side foot motion, or limited up-and-down ankle motion. For further treatment you should see a pediatric orthopedic surgeon or podiatrist experienced in childhood foot conditions.
Most children and adults with flatfeet do not need to see a physician for diagnosis or treatment. However, it is a good idea to see a doctor if the feet tire easily or are painful after standing, it is difficult to move the foot around or stand on the toes, the foot aches, especially in the heel or arch, and there is swelling on the inner side of the foot, the pain interferes with activity or the person has been diagnosed with rheumatoid arthritis. Most flatfeet are diagnosed during physical examination. During the exam, the foot may be wetted and the patient asked to stand on a piece of paper. An outline of the entire foot will indicate a flattened arch. Also, when looking at the feet from behind, the ankle and heel may appear to lean inward (pronation). The patient may be asked to walk so the doctor can see how much the arch flattens during walking. The doctor may also examine the patient's shoes for signs of uneven wear, ask questions about a family history of flatfeet, and inquire about known neurological or muscular diseases. Imaging tests may be used to help in the diagnosis. If there is pain or the arch does not appear when the foot is flexed, x-rays are taken to determine the cause. If tarsal coalition is suspected, computed tomography (CT scan) may be performed, and if an injury to the tendons is suspected, magnetic resonance imaging (MRI scan) may be performed.
What is PES Planovalgus deformity?
Non Surgical Treatment
If fallen arches are not causing any pain or discomfort, then they will not need any treatment. If they were causing a persistent pain in the feet, or in the hips, legs or knees, then it would be best to consult your family doctor. Walking is the natural activity of feet and if it is not too painful, sufferers should walk as much as possible to strengthen their arches. When it is possible, go barefoot, or wear soft flexible shoes. In cases of severe fallen arches, your doctor may recommend special shoe inserts.
Surgery is typically offered as a last resort in people with significant pain that is resistant to other therapies. The treatment of a rigid flatfoot depends on its cause. Congenital vertical talus. Your doctor may suggest a trial of serial casting. The foot is placed in a cast and the cast is changed frequently to reposition the foot gradually. However, this generally has a low success rate. Most people ultimately need surgery to correct the problem. Tarsal coalition. Treatment depends on your age, extent of bone fusion and severity of symptoms. For milder cases, your doctor may recommend nonsurgical treatment with shoe inserts, wrapping of the foot with supportive straps or temporarily immobilizing the foot in a cast. For more severe cases, surgery is necessary to relieve pain and improve the flexibility of the foot. Lateral subtalar dislocation. The goal is to move the dislocated bone back into place as soon as possible. If there is no open wound, the doctor may push the bone back into proper alignment without making an incision. Anesthesia is usually given before this treatment. Once this is accomplished, a short leg cast must be worn for about four weeks to help stabilize the joint permanently. About 15% to 20% of people with lateral subtalar dislocation must be treated with surgery to reposition the dislocated bone.