Flat feet (also called pes planus or fallen arches) is a postural deformity in which the arch of the foot collapses, with the entire sole of the foot coming into complete or near-complete contact with the ground. Some individuals (an estimated 20-30% of the general population) have an arch that simply never develops in one foot (unilaterally) or both feet (bilaterally).
Flat feet in adults can appear for a number of reasons. Arches never developed properly. Damage to the tendons that support the arch. Damage or inflammation of the posterior tibial tendon which runs from your lower leg, down and across your ankle, and connects to the middle of the arch. Trauma involving broken bones in the foot. Rheumatoid arthritis. Aging, pregnancy, nerve damage, obesity or even diabetes.
The majority of children and adults with flexible flatfeet never have symptoms. However, their toes may tend to point outward as they walk, a condition called out-toeing. A person who develops symptoms usually complains of tired, aching feet, especially after prolonged standing or walking. Symptoms of rigid flatfoot vary depending on the cause of the foot problem. Congenital vertical talus. The foot of a newborn with congenital vertical talus typically has a convex rocker-bottom shape. This is sometimes combined with an actual fold in the middle of the foot. The rare person who is diagnosed at an older age often has a "peg-leg" gait, poor balance and heavy calluses on the soles where the arch would normally be. If a child with congenital vertical talus has a genetic disorder, additional symptoms often are seen in other parts of the body. Tarsal coalition. Many people have no symptoms, and the condition is discovered only by chance when an X-ray of the foot is obtained for some other problem. When symptoms occur, there is usually foot pain that begins at the outside rear of the foot. The pain tends to spread upward to the outer ankle and to the outside portion of the lower leg. Symptoms usually start during a child's teenage years and are aggravated by playing sports or walking on uneven ground. In some cases, the condition is discovered when a child is evaluated for unusually frequent ankle sprains. Lateral subtalar dislocation. Because this often is caused by a traumatic, high-impact injury, the foot may be significantly swollen and deformed. There also may be an open wound with bruising and bleeding.
Flat feet are easy to identify while standing or walking. When someone with flat feet stands, their inner foot or arch flattens and their foot may roll over to the inner side. This is known as overpronation. To see whether your foot overpronates, stand on tiptoes or push your big toe back as far as possible. If the arch of your foot doesn't appear, your foot is likely to overpronate when you walk or run. It can be difficult to tell whether a child has flat feet because their arches may not fully develop until they're 10 years of age.
pes planus orthotics
Non Surgical Treatment
Treatment isn't usually needed for flat feet because the condition doesn't usually cause any significant problems. Aching feet can often be relieved by wearing supportive shoes that fit properly. You may need to wear shoes that are wider than normal. If your feet overpronate, you may need to wear a special insole (an orthotic) inside your shoes to stop your feet rolling inwards when you walk or run. These will usually need to be made and fitted by a podiatrist. Stretching your calf and Achilles tendon may also help as a tight Achilles can make your foot overpronate. To stretch your calf and Achilles tendon, step forwards with your left leg and bend it, with your right leg straight and both feet pointing forwards, push your right heel into the ground while keeping your right leg straight; you should feel the stretch at the back of your right leg, below the knee, hold the stretch for 15 to 30 seconds and repeat with the opposite leg, repeat the stretch two to four times on each leg, and repeat the overall exercise three to four times a day.
Since there are many different causes of flatfoot, the types of flatfoot reconstruction surgery are best categorized by the conditions. Posterior tibial tendon dysfunction. In this condition, the tendon connecting the calf muscle to the inner foot is torn or inflamed. Once the tendon is damaged it no longer can serve its main function of supporting the arch of the foot. Flatfoot is the main result of this type of condition and can be treated by the following flatfoot reconstruction surgeries. Lengthening of the Achilles tendon. Otherwise known as gastrocnemius recession, this procedure is used to lengthen the calf muscles in the leg. This surgery treats flatfoot and prevents it from returning in the future. This procedure is often combined with other surgeries to correct posterior tibial tendon dysfunction. Cleaning the tendon. Also known as tenosynovectomy, this procedure is used in the earlier and less severe stages of posterior tibial tendon dysfunction. It is performed before the arch collapses and while the tendon is only mildly affected. The inflamed tissue is cleaned away and removed from the remaining healthy tendon. Tendon transfer. This procedure is done to correct flatfoot and reform the lost arch in the foot. During the procedure, the diseased tendon is removed and replaced by tendon from another area of the foot. If the tendon is only partially damaged, the inflamed part is cleaned and removed then attached to a new tendon. Cutting and shifting bones. Also called an osteotomy, this procedure consists of cutting and reconstructing bones in the foot to reconstruct the arch. The heel bone and the midfoot are most likely reshaped to achieve this desired result. A bone graft may be used to fuse the bones or to lengthen the outside of the foot. Temporary instrumentation such as screws and plates can also be used to hold the bones together while they heal.
Sit up straight in a chair with your feet flat on the ground. Scrunch up the toes of one foot as if you are trying to grab hold of the floor then use your toes to drag your foot a small distance forwards. Do this a couple of times on each foot, but don?t use your leg muscles to push your foot forward -- the movement should come solely from the muscles in your feet. Sit in a chair and place a cleaning cloth, towel or small ball on the floor at your feet. Use the toes of one foot to grasp the object and lift it off the floor. This action will require you to clench your toes and contract your arch. Once you have lifted the object a little way off the floor, try to throw it in the air and catch it by stretching your toes and arch out and upwards. Repeat the exercise several times on both feet. Sit on the floor with your legs straight out in front of you then bend your knees out to either side and place the soles of your feet together so your legs form a diamond. Hold on to your ankles and, keeping your heels together at all times, separate your feet so your toes point out to either side. Open and close your feet in this way several times, making sure your little toes stay in contact with the floor throughout the exercise. Starting in the same position, try separating your heels, keeping your toes together at all times.