Bone spurs (retrocalcaneal spur, or exostosis) can develop not only on the back of the heel, but also on the toes, mainly around the fifth (small) toe. Most often, they occur next to the toenail on the outside of the toe; on the inside of the toe near the tip, where the fifth toe presses against the fourth toe; and on the inside of the base of the toe. Bone spurs can also occur on the sides of the toes. This is usually due to wearing shoes that are too tight in the toe box, which causes the toes to press against each other. Bone spurs may also develop in the arch area of the top of the foot; this area becomes painful when you tie your shoelaces tightly or exert other pressure on that part of the foot. Formation of spurs in this area is often associated with arthritis.
These bony protrusions are commonly found in association with a condition called Plantar Fasciitis. Plantar Fasciitis occurs when the plantar fascia ligament, which spans the arch of the foot, becomes stressed, torn and inflamed. Misalignment and excessive movement of the plantar fascia ligament is most typically the result of an abnormal walking gait. The ligament is designed to stretch with the bounce of each step you take, but if it stretches too much, the resulting small tears and inflammation can cause mild to extreme discomfort. At the same time, it is believed that heel spurs are formed as the body attempts to provide some additional support to the over-stretched ligament. In other words, calcium builds up as a prop to the plantar fascia.
Heel spurs may or may not cause symptoms. Symptoms are usually related to the plantar fasciitis. You may experience significant pain. Your heel pain may be worse in the morning when you first wake up or during certain activities.
Your doctor will review your medical history and examine your foot. X-rays are used to identify the location and size of the heel spur.
Non Surgical Treatment
Heel pain may be associated with a heel spur, however the heel pain is usually due to plantar fasciitis, rather than a heel spur, so treatment is usually directed at the plantar fasciitis itself. Treatment usually involves application of ice to reduce pain and inflammation, special stretching exercises, and pain-relieving or anti-inflammatory medicines. Night splints or orthotics may be recommended. It may help to avoid the activities that aggravate pain, such as long walks and running. Surgery is very rarely recommended and only after other measures fail.
Surgery is used a very small percentage of the time. It is usually considered after trying non-surgical treatments for at least a year. Plantar fascia release surgery is use to relax the plantar fascia. This surgery is commonly paired with tarsal tunnel release surgery. Surgery is successful for the majority of people.
In 2002, researchers attempted to compare the effects of various running techniques on pronation and resulting injuries like stress fractures and heel spurs. They suggested that it is possible to teach runners to stride in such a way as to minimize impact forces. One way is to lower running speed. Another is to take longer rest periods following a run.