Heel spurs are a relatively common cause of heel pain. A heel spur is a pointed bone fragment that extends forward from the bottom of the heel from the heel bone, also referred to as a calcaneous. Serious pain and discomfort often develops with this condition. In many cases, a heel spur develops along with plantar fasciitis which occurs when the plantar fascia ligament becomes inflamed.
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.
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.
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
The majority of heel spurs are treated with non-surgical interventions. These can relieve pain, but may take from about 3 months to up to a year for symptoms to resolve. Rest, icing, and over-the-counter anti-inflammatory or prescription medications can help ease symptoms. Cortisone injections may also be used. Physical therapists may instruct you to perform stretching exercises to help relax the tissues in the heel. Your doctor may recommend custom orthotics or shoe inserts to position and cushion your heel. Night splints can help position the heel and arch of the foot while you sleep. Some doctors may recommend extracorporeal shock wave therapy (ESWT). This treatment uses energy pulses to start the repair process in the heel tissues. ESWT is recommend when other non-surgical treatments have failed.
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.