A heel spur is a painful condition that is caused by the accumulation of excessive calcium under the heel of the foot. The heel bone is made up of a large structure called the calcaneus, which is connected to the bottom of the foot by durable connective tissue called fascia. If the layers of connective tissue become damaged or begin to degenerate due to wear and tear, plantar fasciitis may develop. This causes calcification, which refers to the abnormal buildup of calcium on the heel bone. As the calcium continues to accumulate, a calcified protrusion called a spur may become visible on an X-ray.
Bone spurs can occur all over the body including the spine, shoulders, hands, hips and feet. The feet are a common place to find them. A heel spur happens when the body tries to mend itself. Building extra bone is one way your body tries to correct a weakness. Wearing shoes that are too tight in the heel can cause bone spurs. More women than men get heel spurs because of the kinds of shoes they wear. Athletes who stress their feet and legs routinely are also prone to heel spurs. Being overweight can also indirectly cause heel spurs by over-exerting the plantar fascia. Some heel spurs are caused by the aging process, in which the cartilage covering the ends of bones wears away. This process can lead to pain, swelling and spur formation. Stress-related problems with the plantar fascia frequently lead to heel spurs.
The Heel Spur itself is not thought to be painful. Patients who experience pain with Plantar Fasciitis are suffering from inflammation and irritation of the plantar fascia. This the primary cause of pain and not the Heel Spur. Heel Spurs form in some patients who have plantar fasciitis, and tend to occur in patients who have had the problem for a prolonged period of time. While about 70 % of patients with plantar fasciitis have a heel spur, X-rays also show about 50 % of patients with no symptoms of plantar fasciitis also have a heel spur.
Diagnosis of a heel spur can be done with an x-ray, which will be able to reveal the bony spur. Normally, it occurs where the plantar fascia connects to the heel bone. When the plantar fascia ligament is pulled excessively it begins to pull away from the heel bone. When this excessive pulling occurs, it causes the body to respond by depositing calcium in the injured area, resulting in the formation of the bone spur. The Plantar fascia ligament is a fibrous band of connective tissue running between the heel bone and the ball of the foot. This structure maintains the arch of the foot and distributes weight along the foot as we walk. However, due to the stress that this ligament must endure, it can easily become damaged which commonly occurs along with heel spurs.
Non Surgical Treatment
The heel pain associated with heel spurs and plantar fasciitis may not respond well to rest. If you walk after a night's sleep, the pain may feel worse as the plantar fascia suddenly elongates, which stretches and pulls on the heel. The pain often decreases the more you walk. But you may feel a recurrence of pain after either prolonged rest or extensive walking. If you have heel pain that persists for more than one month, consult a health care provider. He or she may recommend conservative treatments such as stretching exercises, shoe recommendations, taping or strapping to rest stressed muscles and tendons, shoe inserts or orthotic devices, physical therapy. Heel pain may respond to treatment with over-the-counter medications such as acetaminophen (Tylenol), ibuprofen (Advil), or naproxen (Aleve). In many cases, a functional orthotic device can correct the causes of heel and arch pain such as biomechanical imbalances. In some cases, injection with a corticosteroid may be done to relieve inflammation in the area.
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.