Plantar fasciitis is the most common cause of pain on the bottom of the heel. Approximately 2 million patients are treated for this condition every year. Plantar fasciitis occurs when the strong band of tissue that supports the arch of your foot becomes irritated and inflamed. The plantar fascia is a long, thin ligament that lies directly beneath the skin on the bottom of your foot. It connects the heel to the front of your foot, and supports the arch of your foot.
Training on improper, hard and/or irregular surfaces as well as excessive track work in spiked shoes, or steep hill running, can stress the plantar fascia past its limits of elasticity, leading to injury. Finally, failure in the early season to warm up gradually gives the athlete insufficient time for the structures of the foot to re-acclimate and return to a proper fitness level for intensive exercise. Such unprepared and repeated trauma causes microscopic tearing, which may only be detected once full-blown plantar fasciitis and accompanying pain and debilitation have resulted. If the level of damage to the plantar fascia is significant, an inflammatory reaction of the heel bone can produce spike-like projections of new bone, known as heel spurs. Indeed, plantar fasciitis has occasionally been refereed to as heel spur syndrome, though such spurs are not the cause of the initial pain but are instead a further symptom of the problem. While such spurs are sometimes painless, in other cases they cause pain or disability in the athlete, and surgical intervention to remove them may be required. A dull, intermittent pain in the heel is typical, sometimes progressing to a sharp, sustained discomfort. Commonly, pain is worse in the morning or after sitting, later decreasing as the patient begins walking, though standing or walking for long periods usually brings renewal of the pain.
The most common symptoms of plantar fasciitis include pain on the bottom of the foot near the heel, pain with the first few steps after getting out of bed in the morning, or after a long period of rest, such as after a long car ride. The pain subsides after a few minutes of walking. Greater pain after (not during) exercise or activity.
After you describe your symptoms and discuss your concerns, your doctor will examine your foot. Your doctor will look for these signs. A high arch, an area of maximum tenderness on the bottom of your foot, just in front of your heel bone. Pain that gets worse when you flex your foot and the doctor pushes on the plantar fascia. The pain improves when you point your toes down. Limited "up" motion of your ankle. Your doctor may order imaging tests to help make sure your heel pain is caused by plantar fasciitis and not another problem. X-rays provide clear images of bones. They are useful in ruling out other causes of heel pain, such as fractures or arthritis. Heel spurs can be seen on an x-ray. Other imaging tests, such as magnetic resonance imaging (MRI) and ultrasound, are not routinely used to diagnose plantar fasciitis. They are rarely ordered. An MRI scan may be used if the heel pain is not relieved by initial treatment methods.
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.
When more conservative methods have failed to reduce plantar fasciitis pain, your doctor may suggest extracorporeal shock wave therapy, which is used to treat chronic plantar fasciitis. Extracorporeal shock wave therapy uses sound waves to stimulate healing, but may cause bruises, numbness, tingling, swelling, and pain. When all else fails, surgery may be recommended to detach the plantar fascia from the heel bone. Few people need surgery to treat the condition.
Factors that help prevent plantar fasciitis and reduce the risk of recurrence include. Exercises to strengthen the muscles of the lower leg and ankle. Warming up before commencing physical activity. Maintaining a healthy body weight. Avoiding high heeled footwear. Using orthotic devices such as arch supports and heel raises in footwear, particularly for people with very high arches or flat feet. Daily stretches of plantar fascia and Achilles tendon.