When the body is under stress or constent inflammation it will deposit calcium to our bones. This added ‘bone growth’ is designed to relieve the added stress/pressure to our connective tissue. In the case of a heel spur, added calcium to the heel bone (calcaneus). It usually forms at the bottom underside of the heel bone where the plantar fascia attaches. This calcium deposit forms over a period of many months. Heel bones can very in shape and size from person to person. An irregular shape heel (calcaneus) can cause the tissue to twist (plantar ligament and Achilles tendon) or a smaller heel bone will put additional stress on tendons and ligaments.
Causes for heel spurs (and related plantar fasciitis) include increase or change in activity, lack of arch support or poor shoe choice, injury, inflexibility in Achilles tendon and calf muscles, and spending hours daily on the feet. Also, arthritis from aging is often a common cause of bone loss and natural cushioning under the heel. Tarsal tunnel syndrome can also be to blame. Ultimately, in the United States, the most likely cause of this pain is being overweight. With more than 60% of the nation obese or morbidly obese, foot pain related to excessive weight is most likely. Dietary changes are most likely to cause long-term relief for bone spurs and plantar fasciitis.
The following symptoms are typical of heel spur. Stabbing pain when treading on the area affected. Dull, irregularly occurring pains in the heel area also without exerting pressure (e.g. in a reclining position) Pain when taking the first steps in the morning (after lying or sitting down for an extended period, especially in the morning) Occasional swelling in the ankle area. For the lower heel spur, extreme sensitivity at the tendon attachment (laterally in the lower heel area) For the upper heel spur, extreme pressure sensitivity of the Achilles tendon, primarily at approximately ankle height.
The proper diagnosis of a heel spur often requires an X-ray. To make this process as convenient for his patients as possible, most clinics have an on-site digital X-ray and diagnostic ultrasound machines. This can make it unnecessary for patients to visit diagnostic imaging centers, allowing patients to receive more expedient treatment.
Non Surgical Treatment
Heel spurs can be treated by wearing orthotic insoles inside the shoe. Orthotics are designed to correct incorrect gait, in particular over-pronation (rolling in of the foot and collapsing of the arches). Over-pronation is a very common foot condition, affecting at least half of the population. It is a major contributing cause of heel spurs. Orthotics are very effective in that the device corrects the foot to its natural position. By supporting the arches properly and preventing excess rolling in of the foot, the plantar fascia is placed under much less strain and stress compared to an unsupported foot. Less strain on the ligament means less pulling away from the heel bone, allowing the inflammation to heal faster. In addition to orthotic treatment, most podiatrists and physiotherapists recommend a series of exercises to help make the ligaments in the feet and legs longer and more flexible. In turn this will help reduce strain on the plantar fascia.
Usually, heel spurs are curable with conservative treatment. If not, heel spurs are curable with surgery, although there is the possibility of them growing back. About 10% of those who continue to see a physician for plantar fascitis have it for more than a year. If there is limited success after approximately one year of conservative treatment, patients are often advised to have surgery.
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.