Maira Tkach

Overview
Many people have pain in the base of their foot. This could be due to overuse of one of many different structures in your foot. Common examples are sesamoiditis (inflammation of structures surrounding two small bones under the big toe joint) and plantar fasciitis (overuse of a ligament-like structure that runs underneath the length of the foot). Pain on standing first thing in the morning is a classic symptom of plantar fasciitis. It is one of the most common problems experienced by runners, accounting for about 10 per cent of running injuries. It is also common among middle-aged people, particularly if they are overweight. It often starts with low-grade pain in the arch or heel of the foot and can get worse over weeks or months.


Causes
The arch of the foot is the concaved, mid-section of the sole. While it only spans an inch or two in most adults, this one small area of the foot bears nearly all of your weight when you walk, and helps to transfer this weight from heel to ball. Just beneath the skin on the sole of the foot, a tough, elastic ligament called the plantar fascia extends from your heel bone to the metatarsal area of the foot. This ligament is designed to bounce gently with the spring of your step, but a number of factors can cause it to become unhealthy. These include. An abnormal walking gait. Vigorous high-impact exercise such as running, playing tennis or basketball. Being overweight. Wearing shoes that slant or cramp any part of the foot. Wearing shoes that have worn down in the heel or sole. A traumatic injury to the foot, including cuts, bruises, strains and fractures. The presence of arthritis or other inflammatory conditions. The normal aging process. In the presence of any of the above factors, the plantar fascia ligament can begin to flex beyond its normal range of motion. Small tears may develop in the tissue and inflammation is commonly present. You may describe your arch pain as sore, sharp, tender, intermittent, constant, burning, tingling or aching. All of these adjectives may be signs that you are experiencing a condition called Plantar Fasciitis.

Symptoms
Symptoms include pain which is often described as a burning pain radiating into the arch of the foot, heel and sometimes the toes. Pins and needles or numbness may be felt in the sole of the foot. Pain may be worse when running or when standing for long periods of time and often worse at night. The area under the medial malleolus on the inside of the ankle may be tender to touch.

Diagnosis
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.

Non Surgical Treatment
Changes in shoes to include more supportive sport shoes or walking shoes that have a softer footbed. Oral anti-inflammatories including over-the-counter medications such as Brufen can help acute flare ups. Prescription strength anti-inflammatories prescribed by your GP or doctor. Prescription Transdermal Verapamil gel, which can reduce scar tissue. Anti-inflammatory injections (cortisone-type medications) into the mass and surrounding areas to decrease the inflammation. Stretching exercises, this may worsen the problem as it stretches the area of tear. Massage including tennis ball orfrozen water bottle massage of the arch - as with stretching this may worsen the problem. Taping or strapping of the foot, arch or ankle to reduce the pressure on the plantar fascia. Long term conservative treatment should include custom moulded functional orthotics. The orthotics should have an accommodation for the plantar fibroma, this is probably the best conservative treatment for plantar fibroma.


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
The best way to prevent plantar fasciitis is to wear shoes that are well made and fit your feet. This is especially important when you exercise, walk a lot, or stand for a long time on hard surfaces. Get new athletic shoes before your old shoes stop supporting and cushioning your feet. You should also avoid repeated jarring to the heel. Maintain a healthy weight. Stretch when you feel a tightening of the ligament that runs along the bottom of your foot. Stop impact sports when symptoms first occur.

Stretching Exercises
Below are two simple plantar fasciitis stretching exercises to help improve the flexibility of the muscles and tendons around the foot and ankle. Plantar fasciitis stretch taken from The Stretching Handbook. Kneel on one foot and place your body weight over your knee. Keep your heel on the ground and lean forward. In the photo to the left, the athlete is stretching the arch of her left foot. Kneel on one foot with your hands on the ground. Place your body weight over your knee and slowly move your knee forward. Keep your toes on the ground and arch your foot. In the photo to the right, the athlete is stretching the arch of his right foot.