Overview
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 Infants and young children naturally have flat feet. The arch should develop over time. Sometimes, the arch does not develop. It is not always clear why this happens. Flat feet may develop because of ruptured or damaged tendon that supports the arch, medical conditions that affect muscles or nerves in the foot, degenerative changes in certain foot joints, Ligament damage in the foot. Symptoms It?s possible to have fallen arches and experience no symptoms whatsoever. But many people do notice some problems with this condition. Their feet, back and legs ache. Standing on their toes is difficult, if not impossible, and they note swelling around the arch and heel. Diagnosis Runners are often advised to get a gait analysis to determine what type of foot they have and so what kind of running shoe they require. This shouldn?t stop at runners. Anyone that plays sports could benefit from this assessment. Sports shoes such as football boots, astro trainers and squash trainers often have very poor arch support and so for the 60-80% of us who do overpronate or have flat feet they are left unsupported. A change of footwear or the insertion of arch support insoles or orthotics can make a massive difference to your risk of injury, to general aches and pains and even to your performance. Why do arches fall? 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). Surgical Treatment Surgery for flat feet is separated into three kinds: soft tissue procedures, bone cuts, and bone fusions. Depending on the severity of the flat foot, a person?s age, and whether or not the foot is stiff determines just how the foot can be fixed. In most cases a combination of procedures are performed. With flexible flat feet, surgery is geared at maintaining the motion of the foot and recreating the arch. Commonly this may involve tendon repairs along the inside of the foot to reinforce the main tendon that lifts the arch. When the bone collapse is significant, bone procedures are included to physically rebuild the arch, and realign the heel. The presence of bunions with flat feet is often contributing to the collapse and in most situations requires correction. With rigid flat feet, surgery is focused on restoring the shape of the foot through procedures that eliminate motion. In this case, motion does not exist pre-operatively, so realigning the foot is of utmost importance. The exception, are rigid flat feet due to tarsal coalition (fused segment of bone) in the back of the foot where freeing the blockage can restore function.
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July 2017
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