A common cause of heel pain is the heel spur, which is a bony growth on the underside of the heel bone. The spur, visible by X-ray, appears as a protrusion that can extend forward as much as half an inch. When there is no indication of bone enlargement, the condition is sometimes referred to as ?heel spur syndrome.?
Heel spurs result from strain on the muscles and ligaments of the foot, by stretching of the long band of tissue that connects the heel and the ball of the foot, and by repeated tearing away of the lining or membrane that covers the heel bone. These conditions may result from biomechanical imbalance, running or jogging, improperly fitted or excessively worn shoes, or obesity. Heel spurs specifically relate to the bony spurs (extra bony growth) that form at the base of the heel. It is a ?spike? of bone that grows from the base of the heel.
Fctors that increase the risk of developing heel spurs include a high body mass index (BMI), regular vigorous activity, and intensive training routines or sports. Factors such as these are believed to increase the incidence of repetitive stress injuries that are associated with the formation of heel spurs. When a heel spur forms, extremely sharp pain along with the feeling that a part of the heel is trying to burst through the skin usually occurs. If left untreated, an individual may eventually begin to struggle to perform simple activities such as walking.
The pain caused by a calcaneal spur is not the result of the pressure of weight on the point of the spur, but results from inflammation around the tendons where they attach to the heel bone. You might expect the pain to increase as you walk on the spur, but actually it decreases. The pain is most severe when you start to walk after a rest. The nerves and capillaries adapt themselves to the situation as you walk. When you rest, the nerves and capillaries rest, also. Then, as you begin to move about again, extreme demands are made on the blood vessels and nerves, which will cause pain until they again adjust to the spur. If excessive strain has been placed on the foot the day before, the pain may also be greater. A sudden strain, as might be produced by leaping or jumping, can also increase the pain. The pain might be localized at first, but continued walking and standing will soon cause the entire heel to become tender and painful.
Heel spurs and plantar fasciitis is usually diagnosed by your physiotherapist or sports doctor based on your symptoms, history and clinical examination. After confirming your heel spur or plantar fasciitis they will investigate WHY you are likely to be predisposed to heel spurs and develop a treatment plan to decrease your chance of future bouts. X-rays will show calcification or bone within the plantar fascia or at its insertion into the calcaneus. This is known as a calcaneal or heel spur. Ultrasound scans and MRI are used to identify any plantar fasciitis tears, inflammation or calcification. Pathology tests may identify spondyloarthritis, which can cause symptoms similar to plantar fasciitis.
Non Surgical Treatment
The first line of treatment for Heel Spur is to avoid the activities and positions that cause the pain. A physician can evaluate your foot with an X-ray to diagnose Heel Spur and determine a course of treatment. This condition can often be treated by non-surgical means; however in severe cases surgery may be necessary to relieve the pain. The most common surgical procedures treat the soft tissues around the Heel Spur, often a tarsal tunnel release or a plantar fascia release. Injections for heel spurs are sometimes controversial as steroids may cause heel pad atrophy or damage the plantar fascia.
Surgery involves releasing a part of the plantar fascia from its insertion in the heel bone, as well as removing the spur. Many times during the procedure, pinched nerves (neuromas), adding to the pain, are found and removed. Often, an inflamed sac of fluid call an accessory or adventitious bursa is found under the heel spur, and it is removed as well. Postoperative recovery is usually a slipper cast and minimal weight bearing for a period of 3-4 weeks. On some occasions, a removable short-leg walking boot is used or a below knee cast applied.
There are heel spur prevention methods available in order to prevent the formation of a heel spur. First, proper footwear is imperative. Old shoes or those that do not fit properly fail to absorb pressure and provide the necessary support. Shoes should provide ample cushioning through the heel and the ball of the foot, while also supporting the arch. Wearing an orthotic shoe insert is one of the best ways to stretch the plantar fascia and prevent conditions such as heel spurs. Stretching the foot and calf is also helpful in preventing damage. Athletes in particular should make sure to stretch prior to any physical activity. Stretching helps prevent heel spurs by making tissue stronger as well as more flexible. In addition, easing into a new or increasingly difficult routine should be done to help avoid strain on the heel and surrounding tissue.