Delilah Kobara

Overview
Each foot contains 26 bones, which form two arches. The longitudinal arch runs the length of the foot, and the transverse arch runs the width. The bones of the arch are primarily held together by the shape with which they fit with each other and by fibrous tissues known as ligaments that serve to hold the bones to each other. The muscles of the foot, along with a tough, sinewy tissue known as the plantar fascia, provide secondary support to the foot. There are also fat pads in the foot to help with weight-bearing and absorbing impact. Arch pain can occur whenever something goes wrong with the function or interaction of any of these structures.


Causes
Unlike a flexible flatfoot, a rigid flatfoot is often the result of a significant problem affecting the structure or alignment of the bones that make up the foot's arch. Some common causes of rigid flatfeet include Congenital vertical talus, In this condition, there is no arch because the foot bones are not aligned properly. In some cases, there is a reverse curve (rocker-bottom foot, in which the shape is like the bottom rails of a rocking chair) in place of the normal arch. Congenital vertical talus is a rare condition present at birth. It often is associated with a genetic disorder, such as Down syndrome, or other congenital disorders. The cause is unknown in up to half of cases. Tarsal coalition (peroneal spastic flatfoot), In this inherited condition, two or more of the foot bones are fused together, interfering with the flexibility of the foot and eliminating the normal arch. A rare condition, it often affects several generations of the same family. Lateral subtalar dislocation. Sometimes called an acquired flatfoot, it occurs in someone who originally had a normal foot arch. In a lateral subtalar dislocation, there is a dislocation of the talus bone, located within the arch of the foot. The dislocated talus bone slips out of place, drops downward and sideways and collapses the arch. It usually occurs suddenly because of a high-impact injury related to a fall from a height, a motor vehicle accident or participation in sports, and it may be associated with fractures or other injuries.

Symptoms
Symptoms of arch pain and arch strain are found in the underside of the foot, where the foot arch is. Arch pain and arch strain is actually inflammation of the tissue in the midfoot, formed by a band that stretches from the toes to the heel. The arch of the foot is needed for the proper transfer of weight from the heel to toe. When the band forming the arch of the foot or plantar fascia becomes inflamed, it becomes painful to perform simple tasks.

Diagnosis
In people with flat feet, the instep of the foot comes in contact with the ground when standing. To diagnose the problem, the health care provider will ask you to stand on your toes. If an arch forms,the flat foot is called flexible. You will not need any more tests or treatment. If the arch does not form with toe-standing (called rigid flat feet), or if there is pain, other tests may be needed, including a CT scan to look at the bones in the foot. MRI scan to look at the tendons in the foot. X-ray of the foot.

Non Surgical Treatment
Just as there are many different causes of flat feet, there are also many different treatment options. The most important aspect of treatment is determining the exact type or underlying cause of flat feet that you have. Foot and ankle specialists can determine this through thorough clinical examination and special imaging studies (e.g., x-rays, computed tomography, and/or magnetic resonance imaging). Conservative treatment is effective in the vast majority of flat foot cases, and consists of things such as insoles, splints, manipulation, or casting. Surgery is required much less frequently, and is reserved only for some of the severe types of flat foot that do not respond to conservative therapy.


Surgical Treatment
There are two types of bone procedure for flat feet, those where bone cuts and bone grafts are used to alter the alignment by avoiding any joint structures, or joint invasive procedures (called fusions or arthrodeses) that remove a joint to reshape the foot. With joint fusion procedures, there are those procedures that involve non-essential joints of the foot versus those that involve essential joints. All bone procedures have their place in flat foot surgery, and Dr. Blitz carefully evaluates each foot to preserve as much motion and function while obtaining proper and adequate alignment. In many cases a flat foot reconstruction involves both soft tissue procedures and bone procedures to rebuild and restore the arch. There are several joints in the arch of the foot that can collapse - and these joints are non-essential joints of the foot. This does not mean that they do not have a purpose, but rather become inefficient is providing a stable platform for function. As such, locking these non-essential non-functioning joints into place is commonly recommended. These joints are fused together with screws and/or plates. A heel bone that is no longer in proper position and pushed outwards away from the foot can be corrected with a bone cut and realignment procedure, so long as the displacement is not too significant. A benefit of this surgery is that it keeps the back portion of the foot mobile, and helps the surrounding tendons work for efficiently in maintaining the arch. In certain flat feet, the foot is deviated outwards and away from the midline of the body. Sometimes, this is due to the outer portion of the foot being shorter than the inner portion. Here bone graft can be added to the outer edge of the foot to lengthen the foot to swing the foot over into a corrected position. This procedure is most commonly performed in children and young adults. A bone graft is inserted into the top part of the arch to realign a component of the flat foot, medically known as forefoot varus or medial column elevatus. The back part of the foot (called the rearfoot complex) can be the cause (or source) of the flat foot or the simply affected by the flat foot foot. In simple terms, the back part of the foot can be made to flatten out due to arch problems - and vica versa for that matter. Dr. Blitz specifically identifies the cause of the flat foot as this will determine the best treatment plan, as each flat foot needs to be evaluated individually. The rearfoot is made up of three joints, and depending on the extent and most importantly the rigidity of these joints, they may require fusion to restore alignment. When all three joints require fusion - this call is a triple arthrodesis. For completeness, isolated fusion of any of the three joints can be performed (such as subtalar joint arthrodesis, talonavicular arthrodesis, and calcaneaocuboid joint arthrodesis). The medical decision making for isolated fusions is beyond the scope this article, but Dr. Blitz tries to avoid any rearfoot fusion for flexible feet because these are joints are essential joints of the foot, especially in younger people. Those in severe cases, it may be advantageous to provide re-alignment.


Prevention
People who run regularly should replace shoes every six months, more frequently if an avid runner. Avoid running or stepping on uneven surfaces. Try to be careful on rocky terrain or hills with loose gravel. Holes, tree stumps and roots are problems if you are trail running. If you have problems with the lower legs, a dirt road is softer than asphalt, which is softer than concrete. Try to pick a good surface if possible. However, if you're racing, be sure to train on the surface you'll eventually run on. Be careful running too many hills. Running uphill is a great workout, but make sure you gradually build this up to avoid injuries. Be careful when running downhill too fast, which can often lead to more injuries than running uphills. Prevent recurrent injuries. Athletes who have experienced ankle injuries previously may benefit from using a brace or tape to prevent recurrent ankle injuries.

Stretching Exercises
Ankle evert or strengthening. Lie on your side with your feet hanging off the end of your bed or a weight bench. Bend the toes of the foot that is closer to the ceiling slightly toward your head. This is the starting position. Now raise your toes toward the ceiling while keeping the rest of your leg stationary. Return to the starting position. Reps. 10-15. Now point your toes slightly away from your head. This is the starting position. Raise your toes toward the ceiling. Return to the starting position. Reps. 10-15. Ankle invertor strengthening. Same as above, but do the exercises with the foot that is closer to the floor. Dorsiflexor strengthening. Sit on a desk, table, or counter so that your feet don?t touch the ground. Let your feet dangle comfortably. Bend your foot upward as far as you can comfortably go. Do not let your foot pull inward or outward. Return to the starting position. Reps. 10-15.