The heel bone is the largest bone in the foot and absorbs the most amount of shock and pressure. A heel spur develops as an abnormal growth of the heel bone. Calcium deposits form when the plantar fascia pulls away from the heel area, causing a bony protrusion, or heel spur to develop. The plantar fascia is a broad band of fibrous tissue located along the bottom surface of the foot that runs from the heel to the forefoot. Heel spurs can cause extreme pain in the rearfoot, especially while standing or walking.
When a patient has plantar fasciitis, the plantar fascia becomes inflamed and degenerative (worn out)--these abnormalities can make normal activities quite painful. Symptoms typically worsen early in the morning after sleep. At that time, the plantar fascia is tight so even simple movements stretch the contracted plantar fascia. As you begin to loosen the plantar fascia, the pain usually subsides, but often returns with prolonged standing or walking.
Most people think that a bone "spur" is sharp and produces pain by pressing on tissue, when in fact, these bony growths are usually smooth and flat. Although they rarely cause pain on their own, bone spurs in the feet can lead to callus formation as tissue builds up to provide added cushion over the area of stress. Over time, wear and tear on joints may cause these spurs to compress neighboring ligaments, tendons or nerves, thus injuring tissue and causing swelling, pain and tearing.
A heel spur is often seen on X-ray as a bony protrusion, which can vary in size. However, because a Heel Spur only indicates increased load on the plantar fascia, and not pain, an ultra sound may be required to assess other actual cause of the heel pain such and may include checking to see if the plantar fascia is inflamed or degenerated.
Non Surgical Treatment
Exercise. If you think your pain is exercise-related, change your exercise routine, environment, or foot-ware, and emphasize movements and/or body parts that do not cause pain. Mind/Body. Occasionally foot pain can be related to stress. The body may respond with generalized tension that contributes to pain in many areas, including the feet. Hypnosis and guided imagery are worth exploring if an anatomical problem is not apparent. Supplements. Natural anti-inflammatories can be just as effective as ibuprofen or other over-the-counter pain relievers with fewer side effects. Try one of the following. Ginger (Zingiber officinale) standardized to 5-6% gingerols and 6% shogoals, take one to two 500 mg tablets three to four times daily. Turmeric (Curcuma longa) standardized to 95% curcuminoids, take 400-600 mg three times daily. Also, be sure that you're wearing well-fitting shoes, the proper shoes for each activity, and that you buy new foot-ware as soon as you notice signs of wear. You can also take the pressure off your heel with a donut-shaped heel cushion or a heel-raising pad placed in your shoe. Acupuncture can also relieve the pain, as can for some sufferers, magnetic shoe inserts, although the evidence behind their effectiveness is not conclusive. Osteopathic or chiropractic manipulation can help with soft tissue pain in and around the feet.
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.
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.