The appearance of flat feet is normal and common in infants, partly due to "baby fat" which masks the developing arch and partly because the arch has not yet fully developed. The human arch develops in infancy and early childhood as part of normal muscle, tendon, ligament and bone growth. Training of the feet, especially by foot gymnastics and going barefoot on varying terrain, can facilitate the formation of arches during childhood, with a developed arch occurring for most by the age of four to six years. Flat arches in children usually become proper arches and high arches while the child progresses through adolescence and into adulthood.
Fallen arches can be the result of other conditions such as overuse, stretching or tearing of the posterior tibial tendon (which attaches to a bone in the foot and runs up the calf of the lower leg at a tension which pulls up the arch) which reduces its ability to maintain tension in the tendon. Whether or not the condition is caused by overpronation, this is the likely outcome for runners, whose arches are no longer strong enough to take the constant strain of bearing the body?s weight on impact, causing joint, postural and muscular problems.
Flat feet may not cause any symptoms at all. Rigid flat feet may cause pain, calluses, blisters, or skin redness on the inner side of the foot. A stiff foot, weakness or numbness of the foot, Rapid wearing out of shoes-worn shoes lean in toward each other. Difficulty or pain with activities like running-in the foot, knee or hip.
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.
Non Surgical Treatment
The treatment is simple for flat feet. We will carry out a biomechanical assessment and full history, often along side a Computerised Gait Scan to give us an idea of how the foot is compensating. Treatment will be to, control how the foot hits the ground, support the middle of the foot and prevent the arch collapsing, promote normal movement in the front of the foot. The ability to do this will be dictated by the movement within the foot to start with. Treatment for all the above problems are often combined with a physiotherapy session in order to help develop a stretching and strengthening program for the back of the legs and the pelvis in order to allow normal function when the orthoses have been prescribed. If you are born with flat feet you will not grow out of them - if you get orthoses, like glasses you will need them for the rest of your life if you want to correct the mechanics in your foot. In 95% of cases, orthoses will reduce symptoms by at least 85%. In the other 5% we will work with them to get them to this level.
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.
Time off work depends on the type of work as well as the surgical procedures performed. . A patient will be required to be non-weight bearing in a cast or splint and use crutches for four to twelve weeks. Usually a patient can return to work in one to two weeks if they are able to work while seated. If a person's job requires standing and walking, return to work may take several weeks. Complete recovery may take six months to a full year. Complications can occur as with all surgeries, but are minimized by strictly following your surgeon's post-operative instructions. The main complications include infection, bone that is slow to heal or does not heal, progression or reoccurrence of deformity, a stiff foot, and the need for further surgery. Many of the above complications can be avoided by only putting weight on the operative foot when allowed by your surgeon.