Heel pain is a very common foot problem. The sufferer usually feels pain either under the heel (planter fasciitis) or just behind it (Achilles tendinitis), where the Achilles tendon connects to the heel bone. Even though heel pain can be severe and sometimes disabling, it is rarely a health threat. Heel pain is typically mild and usually disappears on its own; however, in some cases the pain may persist and become chronic (long-term). There are 26 bones in the human foot, of which the heel (calcaneus) is the largest. The human heel is designed to provide a rigid support for the weight of the body. When we are walking or running it absorbs the impact of the foot when it hits the ground, and springs us forward into our next stride. Experts say that the stress placed on a foot when walking may be 1.25 times our body weight, and 2.75 times when running. Consequently, the heel is vulnerable to damage, and ultimately pain.
Heel pain sometimes results from excessive pronation. Pronation is the normal flexible motion and flattening of the arch of the foot that allows it to adapt to ground surfaces and absorb shock in the normal walking pattern. As you walk, the heel contacts the ground first; the weight shifts first to the outside of the foot, then moves toward the big toe. The arch rises, the foot generally rolls upward and outward, becoming rigid and stable in order to lift the body and move it forward. Excessive pronation-excessive inward motion-can create an abnormal amount of stretching and pulling on the ligaments and tendons attaching to the bottom back of the heel bone. Excessive pronation may also contribute to injury to the hip, knee, and lower back.
Sever?s Disease. This is a condition that occurs in 10 - 15 year old children, predominantly boys and is associated with running and repetitive jumping. It is also associated with flimsy footwear that kids may wear. It occurs when the Achilles tendon continually pulls on the apophysis of the calcaneum and does not allow for it to fuse with the body of the calcaneum. Calcaneal enthesopathy. This occurs when there is repetitive trauma at the attachment of the Achilles tendon, resulting in a spur from the calcaneum up into the Achilles tendon. It is usually visualized on x-ray and may be tender if there is an associated bursitis or tendonitis. "Pump Bump". Also known as Haglund?s Deformity, this is a bony enlargement that exists on the back of the heel - usually related to a congenital abnormality or with chronic bursitis, causing a thickening. There may have already been trauma or pressure from footwear. Treatment is usually protection of the bump and correct footwear. Associated with a symmetrical swelling at the base of the Achilles tendon. It is usually related to repetitive trauma or inappropriate footwear. It is often red and hot in the early stages. Treatment is usually to correct the footwear, provide padding and treat the local symptoms e.g. ice, rest, physiotherapy and cortisone injection. Fat Pad Syndrome. Direct contact with the base of the heel may result in trauma to the fat pad. Related to obesity, training on hard surfaces, uneven grounds, poor shoes especially overlarge shoes which can cause shearing forces on the heel. These conditions are renowned for taking a long time to recover - usually many months.
A biomechanical exam by your podiatrist will help reveal these abnormalities and in turn resolve the cause of plantar fasciitis. By addressing this cause, the patient can be offered a podiatric long-term solution to his problem.
Non Surgical Treatment
If you still have pain after several weeks, see your foot and ankle surgeon, who may add one or more of these treatment approaches, padding and strapping. Placing pads in the shoe softens the impact of walking. Strapping helps support the foot and reduce strain on the fascia. Orthotic devices. Custom orthotic devices that fit into your shoe help correct the underlying structural abnormalities causing the plantar fasciitis. Injection therapy. In some cases, corticosteroid injections are used to help reduce the inflammation and relieve pain. Removable walking cast. A removable walking cast may be used to keep your foot immobile for a few weeks to allow it to rest and heal. Night splint. Wearing a night splint allows you to maintain an extended stretch of the plantar fascia while sleeping. This may help reduce the morning pain experienced by some patients. Physical therapy. Exercises and other physical therapy measures may be used to help provide relief.
It is rare to need an operation for heel pain. It would only be offered if all simpler treatments have failed and, in particular, you are a reasonable weight for your height and the stresses on your heel cannot be improved by modifying your activities or footwear. The aim of an operation is to release part of the plantar fascia from the heel bone and reduce the tension in it. Many surgeons would also explore and free the small nerves on the inner side of your heel as these are sometimes trapped by bands of tight tissue. This sort of surgery can be done through a cut about 3cm long on the inner side of your heel. Recently there has been a lot of interest in doing the operation by keyhole surgery, but this has not yet been proven to be effective and safe. Most people who have an operation are better afterwards, but it can take months to get the benefit of the operation and the wound can take a while to heal fully. Tingling or numbness on the side of the heel may occur after operation.
heel pad anatomy
Being overweight can place excess pressure and strain on your feet, particularly on your heels. Losing weight, and maintaining a healthy weight by combining regular exercise with a healthy, balanced diet, can be beneficial for your feet. Wearing appropriate footwear is also important. Ideally, you should wear shoes with a low to moderate heel that supports and cushions your arches and heels. Avoid wearing shoes with no heels.