The plantar fascia is a thick fibrous band that runs the length of the sole of the foot. The plantar fascia helps maintain the complex arch system of the foot and plays a role in one’s balance and the various phases of gait. Injury to this tissue, called plantar fasciitis, is one of the most disabling running injuries and also one of the most difficult to resolve. Plantar fasciitis represents the fourth most common injury to the lower limb and represents 8 -10% of all presenting injuries to sports clinics (Ambrosius 1992, Nike 1989). Rehabilitation can be a long and frustrating process. The use of preventative exercises and early recognition of danger signals are critical in the avoidance of this injury.
Plantar fasciitis can be confused with a condition called tarsal tunnel syndrome. In tarsal tunnel syndrome, an important nerve in the foot, the tibial nerve, is trapped and pinched as it passes through the tarsal tunnel, a condition analogous to carpal tunnel syndrome in the wrist. This may cause symptoms similar to the pain of a plantar fasciitis. There are also other less common problems such as nerve entrapments, stress fractures, and fat pad necrosis, all of which can cause foot pain. Finally, several rheumatologic conditions can cause heel pain. These syndromes such as Reiter’s syndrome and ankylosing spondylitis can cause heel pain similar to plantar fasciitis. If your symptoms are not typical for plantar fasciitis, or if your symptoms do not resolve with treatment, your doctor will consider these possible diagnoses.
Plantar fasciitis typically causes a stabbing pain in the bottom of your foot near the heel. The pain is usually worst with the first few steps after awakening, although it can also be triggered by long periods of standing or getting up from a seated position.
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.
Surgery is rarely needed in the treatment of plantar fasciitis. The vast majority of patients diagnosed with plantar fasciitis will recover given ample time. With some basic treatment steps, well over 90% of patients will achieve full recovery from symptoms of plantar fasciitis within one year of the onset of treatment. Simple treatments include anti-inflammatory medication, shoe inserts, and stretching exercises. In patients where a good effort with these treatments fails to provide adequate relief, some more aggressive treatments may be attempted. These include cortisone injections or extracorporeal shock wave treatments.
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.