The Plantar Fascia is a broad, thick band of tissue that runs from under the heel to the front of the foot. Through overuse the fascia can become inflamed and painful at its attachment to the heel bone or calcaneus. The condition is traditionally thought to be inflammation, however this is now believed to be incorrect due to the absence of inflammatory cells within the fascia. The cause of pain is thought to be degeneration of the collagen fibres close to the attachment to the heel bone.
Plantar Fasciitis often leads to heel pain, heel spurs, and/or arch pain. The excessive stretching of the plantar fascia that leads to the inflammation and discomfort can be caused by the following: Over-pronation (flat feet) which results in the arch collapsing upon weight bearing A foot with an unusually high arch A sudden increase in physical activity Excessive weight on the foot, usually attributed to obesity or pregnancy Improperly fitting footwear Over-pronation (flat feet) is the leading cause of plantar fasciitis. Over-pronation occurs in the walking process, when a person’s arch collapses upon weight bearing, causing the plantar fascia to be stretched away from the heel bone. With Plantar Fasciitis, the bottom of your foot usually hurts near the inside of the foot where the heel and arch meet. The pain is often acute either first thing in the morning or after a long rest, because while resting the plantar fascia contracts back to its original shape. As the day progresses and the plantar fascia continues to be stretched, the pain often subsides.
The pain is more intense with your first steps out of bed in the morning or after sitting for a while. The reason for this is that during rest our muscles and ligaments tend to shorten and tighten up. The tightening of the plantar fascia means more traction on the ligament making the tissue even more sensitive. With sudden weight-bearing the tissue is being traumatised, resulting in a stabbing pain. After walking around for a while the ligament warms up, becomes a little bit more flexible and adapts itself, making the pain go way entirely or becoming more of a dull ache. However, after walking a long distance or standing for hours the pain will come back again. To prevent the sudden sharp pain in the morning or after sitting, it is important to give the feet a little warm-up first with some simple exercises. Also, any barefoot walking should be avoided, especially first thing in the morning, as this will damage to the plantar fascia tissue. Aparty from pain in the heel or symptoms may include a mild swelling under the heel. In addition, heel pain is often associated with tightness in the calf muscles. Tight calf muscles are a major contributing factor to Plantar Fasciitis.
During the physical exam, your doctor checks for points of tenderness in your foot. The location of your pain can help determine its cause. Usually no tests are necessary. The diagnosis is made based on the history and physical examination. Occasionally your doctor may suggest an X-ray or magnetic resonance imaging (MRI) to make sure your pain isn’t being caused by another problem, such as a stress fracture or a pinched nerve. Sometimes an X-ray shows a spur of bone projecting forward from the heel bone. In the past, these bone spurs were often blamed for heel pain and removed surgically. But many people who have bone spurs on their heels have no heel pain.
Non Surgical Treatment
Sometimes physical therapy modalities are helpful. The most frequently used modalities include ultrasound (high frequency sound vibrations that create a deep heat and reduce inflammation) and galvanic electrical stimulation ( a carefully applied intermittent muscular stimulation to the heel and calf that helps reduce pain and relax muscle spasm, which is a contributing factor to the pain). This treatment has been found most effective when given twice a week. Repeated taping and padding is sometimes used. The felt pads that will be strapped to your feet will compress after a few days and must be reapplied. While wearing them they should be kept dry, but may be removed the night before your next appointment. Resistant cases of heel pain caused by plantar fasciitis, heel spurs or cases of stress fracture of the calcaneus often need to be placed in a removable below knee cast boot. It is important to be aware of how your foot feels over this time period. If your foot is still uncomfortable without the strapping, but was more comfortable while wearing it, that is an indication that the treatment should help. Remember, what took many months or years to develop can not be eliminated in just a few days.
Surgery is rarely used in the treatment of plantar fasciitis. However it may be recommended when conservative treatment has been tried for several months but does not bring adequate relief of symptoms. Surgery usually involves the partial release of the plantar fascia from the heel bone. In approximately 75% of cases symptoms are fully resolved within six months. In a small percentage of cases, symptoms may take up to 12 months to fully resolve.
The following steps will help prevent plantar fasciitis or help keep the condition from getting worse if you already have it. Take care of your feet. Wear shoes with good arch support and heel cushioning. If your work requires you to stand on hard surfaces, stand on a thick rubber mat to reduce stress on your feet. Do exercises to stretch the Achilles tendon at the back of the heel. This is especially important before sports, but it is helpful for non-athletes as well. Ask your doctor about recommendations for a stretching routine. Stay at a healthy weight for your height. Establish good exercise habits. Increase your exercise levels gradually, and wear supportive shoes. If you run, alternate running with other sports that will not cause heel pain. Put on supportive shoes as soon as you get out of bed. Going barefoot or wearing slippers puts stress on your feet. If you feel that work activities caused your heel pain, ask your human resources department for information about different ways of doing your job that will not make your heel pain worse. If you are involved in sports, you may want to consult a sports training specialist for training and conditioning programs to prevent plantar fasciitis from recurring.