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.
This condition is a constellation of many causes; overweight, ill fitting shoes, bio-mechanical problems (mal-alignment of the heel), gout, pronation (a complex motion including outward rotation of the heel and inward rotation of the ankle) and rheumatoid arthritis are some of the causes of heel pain.
The spur itself is not painful, however, if it is sharp and pointed it can poke into soft tissue surrounding the spur itself. As the bone spur irritates the tissue, inflammation and bruising can occur leading to heel pain. Heel spurs can affect your ability to do your usual work and/or activities, and can also trap and irritate the nerves in your heel area. They can change the way you walk, and can lead to knee, hip and low back injuries. If severe, they may require medical intervention.
Because the diagnosis of heel spurs can be confused with tarsal tunnel syndrome (as described earlier), most surgeons advocate performing a tarsal tunnel release (or at least a partial tarsal tunnel release) along with the plantar fascia release. This surgery is about 80percent successful in relieving pain in the small group of patients who do not improve with conservative treatments.
Non Surgical Treatment
Treatments for bone spurs and plantar fasciitis include Stretching the calf muscles several times daily is critical in providing tension relief for the plantar fascia. Some physicians may recommend using a step to stretch, while others may encourage yoga or pushing against a wall to stretch. Icing after activity. A frozen tennis ball can provide specific relief. Rolling the tennis ball under the arch of the foot after exercise can lessen pain in the area. Taping is also recommended at times. Several manufacturers of sports tape have plantar fascia specific lines. Orthotics are a good idea for those on their feet during the day. Orthotics can provide cushioning and relief. Cortisone shots in the fascia can provide temporary anti-inflammatory relief. Losing weight is perhaps the most effective method of improving heel and foot pain. Those who are overweight are far more likely to report these syndromes.
In a small number of cases (usually less than 5 percent), patients may not experience relief after trying the recommendations listed above. It is important that conservative treatments (such as those listed above) be performed for AT LEAST a year before considering surgery. Time is important in curing the pain from heel spurs, and insufficient treatment before surgery may subject you to potential complications from the procedure. If these treatments fail, your doctor may consider an operation to loosen the plantar fascia, called a plantar fascia release.