Overview
The plantar fascia is a sturdy structure but the degree of stress that it takes makes it susceptible to injury. A force equal to almost three times body weight passes through the foot with each step. On running, this typically happens about 90 times a minute. Plantar fasciitis is thought to be a traction and overuse injury. Damage to the plantar fascia is usually in the form of micro-tears. It is a degenerative rather than an inflammatory process. Damage tends to occur near the heel, where stress on the fibres is greatest, and where the fascia is the thinnest. The fascia broadens as it extends toward the toes.
Plantar fasciitis is often associated with calcaneal spurs. These are depositions of calcium where the fascia suffers most damage. Spurs are most commonly on the medial side at the origin of the fascia from the calcaneum. Spurs are the result of the process of plantar fasciitis and not the cause of the pain. It can present bilaterally.
Causes
There are several reasons why arch pain develops. Sometimes it?s due to a condition known as plantar fasciitis, in which the plantar fascia (the band of tissue that runs along the bottom of your foot from your heel to your toes) becomes inflamed after excessive stress. Heel pain results from this inflammation. Sometimes the pain is due to extensive time spent on your feet. Many people feel pain on the arch of their feet after a long workday, while others overuse their feet exercising or playing sports. A foot deformity, such as hammertoe or clubfoot, can also cause this pain. Medical conditions such as diabetes or obesity can put additional stress on your feet, thereby causing arch pain. Your footwear is also important. Shoes should support all parts of your foot, especially the bottom. This is very important if you spend excessive time on your feet, if your obese, if your pregnant, or if you engage in sport-related activities. Injuries to any of the twenty-six bones, thirty-three joints and over 100 muscles, tendons and ligaments in the feet can also cause arch pain. Because the foot is such a complex structure, it?s important to see a podiatrist at the first sign of symptoms.
Symptoms
Flat feet can exhibit a variety of symptoms, from mild to severe. The extent of the flat foto does not always correlate with the extent of symptoms. Patients may complain of arch pain and heel pain. Commonly there is pain on the outside of the foot, where the foot meets the ankle as the collapse foot abuts against the ankle. Muscle cramps within the foot, and onto the leg (shin splints) may occur. In general, patients have pain with activity, such as walking or running. The pain may be deep and focal to a generalized widespread achy feeling. Irritation from shoe gear can cause redness and swelling. Common reasons patients seek treatment are pain, interference with walking or activities, difficulty fitting shoes, swelling, and notice a change in appearance of the foot and/or unsightly appearance.
Diagnosis
The doctor will take a brief history to determine how the injury occurred. If necessary, a thorough physical exam may be conducted to evaluate for any other injuries. Taking your workout shoes to the exam may also provide valuable information to the medical practitioner. Both feet will be physically and visually examined by the medical practitioner. The foot and arch will be touched and manipulated possibly with a lot of pressure and inspected to identify obvious deformities, tender spots, or any differences in the bones of the foot and arch.
Non Surgical Treatment
Anti-inflammatory medications such as ibuprofen and aspirin can provide short-term relief from foot pain associated with fallen arches, notes the American Academy of Orthopaedic Surgeons. Doctors sometimes inject the foot with a corticosteroid medication, which acts as an anti-inflammatory, to relieve acute pain. Although medications can provide symptom relief, they do not correct the underlying foot abnormality.
Surgical Treatment
A procedure that involves placing a metallic implant (most commonly) at the junction where the foot meets the ankle. This device causes the physical blockade that prevent the collapse. It is a procedure that is only indicated for mobile feet, and should not be used with rigid flat feet. Dr. Blitz finds this procedure better for younger patients with flexible flat feet where the bone alignment is still developing so that the foot can adapt to function in a better aligned position.
Prevention
Warm up properly. This means not only stretching prior to a given athletic event, but a gradual rather than sudden increase in volume and intensity over the course of the training season. A frequent cause of plantar fasciitis is a sudden increase of activity without suitable preparation. Avoid activities that cause pain. Running on steep terrain, excessively hard or soft ground, etc can cause unnatural biomechanical strain to the foot, resulting in pain. This is generally a sign of stress leading to injury and should be curtailed or discontinued. Shoes, arch support. Athletic demands placed on the feet, particularly during running events, are extreme. Injury results when supportive structures in the foot have been taxed beyond their recovery capacity. Full support of the feet in well-fitting footwear reduces the likelihood of injury. Rest and rehabilitation. Probably the most important curative therapy for cases of plantar fasciitis is thorough rest. The injured athlete must be prepared to wait out the necessary healing phase, avoiding temptation to return prematurely to athletic activity.
Alba Tooman 