Overview
Plantar fasciitis: Inflammation of the plantar fascia, the bowstring-like tissue that stretches from the heel bone to the base of the toes. Plantar fasciitis can be due to calcaneal spurs, which typically cause localized tenderness and pain that is made worse by stepping down on the heel. Plantar fasciitis may be related to physical activity overload, abnormal foot mechanics, or may be due to underlying diseases that cause arthritis, such as Reiter disease, ankylosing spondylitis, and diffuse idiopathic skeletal hyperostosis. Treatment is designed to decrease inflammation and avoid reinjury. Icing reduces pain and inflammation. Anti-inflammatory agents, such as ibuprofen and injections of cortisone, can help. Infrequently, surgery is done on chronically inflamed spurs. A donut-shaped shoe insert can take pressure off a calcaneal spur and lessen plantar fasciitis.
Causes
The most frequent cause is an abnormal motion of the foot called excessive pronation. Normally, while walking or during long distance running, your foot will strike the ground on the heel, then roll forward toward your toes and inward to the arch. Your arch should only dip slightly during this motion. If it lowers too much, you have what is known as excessive pronation. For more details on pronation, please see the section on biomechanics and gait. Clinically not only those with low arches, but those with high arches can sometimes have plantar fasciitis. The mechanical structure of your feet and the manner in which the different segments of your feet are linked together and joined with your legs has a major impact on their function and on the development of mechanically caused problems. Merely having “flat feet” won’t take the spring out of your step, but having badly functioning feet with poor bone alignment will adversely affect the muscles, ligaments, and tendons and can create a variety of aches and pains. Excess pronation can cause the arch of your foot to stretch excessively with each step. It can also cause too much motion in segments of the foot that should be stable as you are walking or running. This “hypermobility” may cause other bones to shift and cause other mechanically induced problems.
Symptoms
If you have Plantar Fasciitis, you will most likely feel a sharp pain under the ball of you heel and it will often give pain when standing after a period of rest. For example when you get out of bed in the mornings or after being sat down. Some patients describe this feeling as a stone bruise sensation, or a pebble in the shoe and at times the pain can be excruciating. Patients with Plantar Fasciitis can experience pain free periods whereby the think they are on the mend, only for the heel pain to come back aggressively when they appear to have done nothing wrong. If your plantar fasciitis came on very suddenly and the pain is relentless, then you may have Plantar Fascial Tears. We will be able to differentiate between these 2 conditions, sometimes with ultra sound imaging. The treatment for each of these conditions will need to be very different.
Diagnosis
Your doctor will ask you about the kind of pain you’re having, when it occurs and how long you’ve had it. If you have pain in your heel when you stand up for the first time in the morning, you may have plantar fasciitis. Most people with plantar fasciitis say the pain is like a knife or a pin sticking into the bottom of the foot. After you’ve been standing for a while, the pain becomes more like a dull ache. If you sit down for any length of time, the sharp pain will come back when you stand up again.
Non Surgical Treatment
The following recommendations are appropriate. Wear shoes with adequate arch support and cushioned heels; discard old running shoes and wear new ones; rotate work shoes daily. Avoid long periods of standing. Lose weight. Stretch the plantar fascia and warm up the lower extremity before participating in exercise. For increased flexibility, stretch the plantar fascia and the calf after exercise. Do not exercise on hard surfaces. Avoid walking barefooted on hard surfaces. Avoid high-impact sports that require a great deal of jumping (eg, aerobics and volleyball). Apply ice for 20 minutes after repetitive impact-loading activities and at the end of the day. Limit repetitive impact-loading activities such as running to every other day, and consider rest or cross-training for nonrunning days.
Surgical Treatment
The most common surgical procedure for plantar fasciitis is plantar fascia release. It involves surgical removal of a part from the plantar fascia ligament which will relieve the inflammation and reduce the tension. Plantar fascia release is either an open surgery or endoscopic surgery (insertion of special surgical instruments through small incisions). While both methods are performed under local anesthesia the open procedure may take more time to recover. Other surgical procedures can be used as well but they are rarely an option. Complications of plantar fasciitis surgery are rare but they are not impossible. All types of plantar fasciitis surgery pose a risk of infection, nerve damage, and anesthesia related complications including systemic toxicity, and persistence or worsening of heel pain.