Plantar fasciitis is a dull to severe pain in your heel caused by a strain and inflammation of your plantar fascia. The plantar fascia is a scientific name for “foot tissue”. This particular tissue is a ligament attached at one side to the heel bone. At the other side, the tissue fans out to attach at the base of each of your five toes. Plantar fasciitis is the name for the condition that develops when that tissue becomes inflamed. When the plantar fascia is excessively stretched, micro-tears can occur, causing this swelling and subsequent pain.
The cause of plantar fasciitis is poorly understood and is thought to likely have several contributing factors. The plantar fascia is a thick fibrous band of connective tissue that originates from the medial tubercle and anterior aspect of the heel bone. From there, the fascia extends along the sole of the foot before inserting at the base of the toes, and supports the arch of the foot. Originally, plantar fasciitis was believed to be an inflammatory condition of the plantar fascia. However, within the last decade, studies have observed microscopic anatomical changes indicating that plantar fasciitis is actually due to a non-inflammatory structural breakdown of the plantar fascia rather than an inflammatory process. Due to this shift in thought about the underlying mechanisms in plantar fasciitis, many in the academic community have stated the condition should be renamed plantar fasciosis. The structural breakdown of the plantar fascia is believed to be the result of repetitive microtrauma (small tears). Microscopic examination of the plantar fascia often shows myxomatous degeneration, connective tissue calcium deposits, and disorganized collagen fibers. Disruptions in the plantar fascia’s normal mechanical movement during standing and walking (known as the Windlass mechanism) are thought to contribute to the development of plantar fasciitis by placing excess strain on the calcaneal tuberosity.
The symptoms of plantar fasciitis are pain on the bottom of the heel, pain in the arch of the foot, pain that is usually worse upon arising, pain that increases over a period of months. People with plantar fasciitis often describe the pain as worse when they get up in the morning or after they’ve been sitting for long periods of time. After a few minutes of walking the pain decreases, because walking stretches the fascia. For some people the pain subsides but returns after spending long periods of time on their feet.
The health care provider will perform a physical exam. This may show tenderness on the bottom of your foot, flat feet or high arches, mild foot swelling or redness, stiffness or tightness of the arch in the bottom of your foot. X-rays may be taken to rule out other problems.
Non Surgical Treatment
Reducing inflammation in the plantar fascia ligament is an important part of treatment, though this does not address the underlying damage to the ligament. Initial home treatment includes staying off your feet and applying ice for 15 to 20 minutes three or four times a day to reduce swelling. You can also try reducing or changing your exercise activities. Using arch supports in your shoes and doing stretching exercises may also help to relieve pain. Nonsteroidal anti-inflammatory drugs (NSAIDS), such as ibuprofen (i.e. Motrin or Advil) and naproxen (i.e. Aleve), are often used to reduce inflammation in the ligament. If home treatments and over-the-counter anti-inflammatory drugs don’t ease the pain, an injection of a corticosteroid directly into the damaged section of the ligament can be given. Your doctor can do this in his or her office. Your doctor may use an ultrasound device to help determine the best place for the injection. Corticosteroids can also be administered on the skin of your heel or the arch of your foot, and then a painless electrical current is applied to let the steroid pass through your skin and into the muscle. Physical therapy is an important part of treatment for planter fasciitis. It can help stretch your plantar fascia and Achilles tendons. A physical therapist can also show you exercises to strengthen your lower leg muscles, helping to stabilize your walk and lessen the workload on your plantar fascia. If pain continues and other methods aren’t working, your doctor may recommend extracorporeal shock wave therapy. Sound waves are bombarded against your heel to stimulate healing within the ligament. This treatment can result in bruises, swelling, pain, and numbness, and has not been proven to be consistently effective in relieving symptoms.
Surgery is rarely used in the treatment of plantar fasciitis. However it may be recommended when conservative treatment has been tried for several months but does not bring adequate relief of symptoms. Surgery usually involves the partial release of the plantar fascia from the heel bone. In approximately 75% of cases symptoms are fully resolved within six months. In a small percentage of cases, symptoms may take up to 12 months to fully resolve.
To reduce your risk of getting plantar fasciitis take these steps. Wear appropriate and well-fitted footwear during sports and exercise. Do stretching exercises for the Achilles tendon and plantar fascia. Increase the intensity and duration of exercise gradually. Maintain an appropriate weight.