The plantar fascia is made up of 3 distinct parts: the medial, central, and lateral bands. The central plantar fascia is the thickest and strongest section, and this segment is also the most likely to be involved with plantar fasciitis. In normal circumstances, the plantar fascia acts like a windlass mechanism to provide tension and support through the arch. It functions as a tension bridge in the foot, providing both static support and dynamic shock absorption.
Plantar fasciitis is a painful disorder in the lower part of your foot usually around the heel. That pain usually hurts as you get up in the morning when you try to stand on your feet, or after any periods of inactivity. It is a disorder of a tough and strong band that connects the heel bone to the toes. Plantar Fasciitis is caused by injuring that tough band on the bottom of the foot. The following may be the causes of plantar fasciitis. Tight calf muscles or tight Achilles tendon produces repetitive over-stretching of the plantar fascia. Gait and balance Problem may be a dominant cause of this disorder. Many people have a special style of walking, with something unique that causes some kind of imbalance in their body. It might be something like locked knees, feet that turn-out, a weak abdomen etc. This imbalance may place some pressure on the fascia, which eventually causes plantar fasciitis. Weak foot muscles don’t give enough support to the plantar fascia. The small muscles in the foot give the foot its shape by keeping the bones in place and by expanding and contracting to make a movement. Weak foot muscles will allow greater stress on the fascia. Foot anatomical problems such as flat feet or high arches can make the fascia ligament work or stretch abnormally. Flattening of the fat pad at the sole of the feet under the heels is a Degeneration process that is caused by poor footwear or by age. Shoes that have no proper heel cup can flatten that fat pad quite quickly and cause this disorder. Walking in shoes which do not have good arch support is considered to be a cause of plantar fasciitis. Wearing inadequate or worn out shoes may place more stress on the fascia ligament. If you wear shoes that don't fit you by size or width, you may put your feet under excessive stress. Overweight Men and women are more vulnerable to developing the condition because of the excess weight on the foot. Pregnant women are at risk due to gaining weight through pregnancy and due to the pregnancy hormones that make ligaments loosen and relax. Sudden increase of activity like starting to run long distance or complete change of daily activity can cause heel pain and this disorder. Practice of repetitive athletic activities, like long distance running, playing a ball game, dancing or jumping, is a common cause for the disorder. Actually it is considered as one of the most common running injuries. Spending long periods of time on your feet everyday can cause plantar fasciitis. Working on your feet a few hours a day evey day may be the reason for your heel pain.
The typical presentation is sharp pain localized at the anterior aspect of the calcaneus. Plantar fasciitis has a partial association with a heel spur (exostosis); however, many asymptomatic individuals have bony heel spurs, whereas many patients with plantar fasciitis do not have a spur.
The health care provider will perform a physical exam. This may show tenderness on the bottom of your foot, flat feet or high arches, mild foot swelling or redness, stiffness or tightness of the arch in the bottom of your foot. X-rays may be taken to rule out other problems.
Non Surgical Treatment
The key for the proper treatment of plantar fasciitis is determining what is causing the excessive stretching of the plantar fascia. When the cause is over-pronation (flat feet), an orthotic with rearfoot posting and longitudinal arch support is an effective device to reduce the over-pronation and allow the condition to heal. If you have usually high arches, which can also lead to plantar fasciitis, cushion the heel, absorb shock and wear proper footwear that will accommodate and comfort the foot. Other common treatments include stretching exercises, plantar fasciitis night splints, wearing shoes that have a cushioned heel to absorb shock, and elevating the heel with the use of a heel cradle or heel cup. Heel cradles and heel cups provide extra comfort, cushion the heel, and reduce the amount of shock and shear forces placed during everyday activities.
If treatment hasn't worked and you still have painful symptoms after a year, your GP may refer you to either an orthopaedic surgeon, a surgeon who specialises in surgery that involves bones, muscles and joints, a podiatric surgeon, a podiatrist who specialises in foot surgery. Surgery is sometimes recommended for professional athletes and other sportspeople whose heel pain is adversely affecting their career. Plantar release surgery. Plantar release surgery is the most widely used type of surgery for heel pain. The surgeon will cut the fascia to release it from your heel bone and reduce the tension in your plantar fascia. This should reduce any inflammation and relieve your painful symptoms. Surgery can be performed either as, open surgery, where the section of the plantar fascia is released by making a cut into your heel, endoscopic or minimal incision surgery - where a smaller incision is made and special instruments are inserted through the incision to gain access to the plantar fascia. Endoscopic or minimal incision surgery has a quicker recovery time, so you will be able to walk normally much sooner (almost immediately), compared with two to three weeks for open surgery. A disadvantage of endoscopic surgery is that it requires both a specially trained surgical team and specialised equipment, so you may have to wait longer for treatment than if you were to choose open surgery. Endoscopic surgery also carries a higher risk of damaging nearby nerves, which could result in symptoms such as numbness, tingling or some loss of movement in your foot. As with all surgery, plantar release carries the risk of causing complications such as infection, nerve damage and a worsening of your symptoms after surgery (although this is rare). You should discuss the advantages and disadvantages of both techniques with your surgical team. Extracorporeal shockwave therapy (EST) is a fairly new type of non-invasive treatment. Non-invasive means it does not involve making cuts into your body. EST involves using a device to deliver high-energy soundwaves into your heel. The soundwaves can sometimes cause pain, so a local anaesthetic may be used to numb your heel. It is claimed that EST works in two ways. It is thought to, have a "numbing" effect on the nerves that transmit pain signals to your brain, help stimulate and speed up the healing process. However, these claims have not yet been definitively proven. The National Institute for Health and Care Excellence (NICE) has issued guidance about the use of EST for treating plantar fasciitis. NICE states there are no concerns over the safety of EST, but there are uncertainties about how effective the procedure is for treating heel pain. Some studies have reported that EST is more effective than surgery and other non-surgical treatments, while other studies found the procedure to be no better than a placebo (sham treatment).