Adria Rosebrook

Your Foot Dilemmas Data Base

You Have Got Fallen Arches?

Overview

Acquired Flat Feet

The most common arch problem is the flat foot. This sometimes starts in childhood or may gradually develop in adulthood. In most cases the flat foot is related to a tight calf. The tightness of the calf forces the foot to overpronate (the inside of the foot rolls inwards) and the arch to break down and collapse. The arch collapse leads to abnormal stress on the plantar fascia leading to heel pain, as well as to the main medial tendon (the posterior tibial tendon), leading to tendonitis and even tears of the tendon. The other common symptom in severe flat feet is pain on the outside of the foot as well as calf and Achilles symptoms.

Causes

Fallen arches have many causes. If you have fallen arches, or flat feet, the normal arch in the middle of your foot is not curved properly. You can have this condition called ples planus in medical terms and never have any symptoms. However, fallen arches can lead to foot pain, fatigue or more serious conditions. If fallen arches alter the way you walk, you may eventually develop knee, hip and low back pain. Your foot may lose normal range of motion making it hard to rise up onto your toes. In some cases, your feet can become swollen. If you have this condition, talk to your doctor about an appropriate treatment plan.

Symptoms

Feet tire easily and become painful and achy, especially around the arch, ankle and heel. Swelling on the inside bottom of your feet. Back and leg pain. Difficulty standing on toes.

Diagnosis

Diagnosis of flat feet or fallen arches can be made by your health practitioner and is based on the following. Clinical assessment involving visual gait assessment, as well as biomechanical assessment. A detailed family and medical history. A pain history assessment determining the location of painful symptoms. Physical palpation of the feet and painful areas. Imaging such as MRI or x-ray can be used by your practitioner to assist in the diagnosis.

fallen arches support

Non Surgical Treatment

In rare cases, surgery may be needed if a child has flat feet caused by a problem they're born with (a congenital abnormality). The foot may need to be straightened or the bones may need to be separated if they're fused together. Painkillers and insoles are the first treatment options for flat feet that are caused by a joint problem, such as arthritis or a torn tendon. However, surgery may be recommended if the injury or condition is severely affecting your feet. Where flat feet are caused by a condition that affects the nervous system, special shoes, insoles, or supportive foot or leg braces may be needed. Again, in severe cases, an operation may be needed to straighten the feet.

Surgical Treatment

Flat Feet

Common indications for surgery are cerebral palsy with an equinovalgus foot, to prevent progression and breakdown of the midfoot. Rigid and painful Pes Planus. To prevent progression, eg with a Charcot joint. Tibialis posterior dysfunction, where non-surgical treatment is unsuccessful. Possible surgical procedures include Achilles tendon lengthening. Calcaneal osteotomy, to re-align the hindfoot. Reconstruction of the tibialis posterior tendon. For severe midfoot collapse of the arch, triple arthrodesis may be indicated.

After Care

Patients may go home the day of surgery or they may require an overnight hospital stay. The leg will be placed in a splint or cast and should be kept elevated for the first two weeks. At that point, sutures are removed. A new cast or a removable boot is then placed. It is important that patients do not put any weight on the corrected foot for six to eight weeks following the operation. Patients may begin bearing weight at eight weeks and usually progress to full weightbearing by 10 to 12 weeks. For some patients, weightbearing requires additional time. After 12 weeks, patients commonly can transition to wearing a shoe. Inserts and ankle braces are often used. Physical therapy may be recommended. There are complications that relate to surgery in general. These include the risks associated with anesthesia, infection, damage to nerves and blood vessels, and bleeding or blood clots. Complications following flatfoot surgery may include wound breakdown or nonunion (incomplete healing of the bones). These complications often can be prevented with proper wound care and rehabilitation. Occasionally, patients may notice some discomfort due to prominent hardware. Removal of hardware can be done at a later time if this is an issue. The overall complication rates for flatfoot surgery are low.