The plantar fascia is a sturdy structure but the degree of stress that it takes makes it susceptible to injury. A force equal to almost three times body weight passes through the foot with each step. On running, this typically happens about 90 times a minute. Plantar fasciitis is thought to be a traction and overuse injury. Damage to the plantar fascia is usually in the form of micro-tears. It is a degenerative rather than an inflammatory process. Damage tends to occur near the heel, where stress on the fibres is greatest, and where the fascia is the thinnest. The fascia broadens as it extends toward the toes.
Plantar fasciitis is often associated with calcaneal spurs. These are depositions of calcium where the fascia suffers most damage. Spurs are most commonly on the medial side at the origin of the fascia from the calcaneum. Spurs are the result of the process of plantar fasciitis and not the cause of the pain. It can present bilaterally.
Arch and heel pain is usually the result of faulty biomechanics (walking gait abnormalities) that place too much stress on the heel bone and the soft tissues that attach to it. This increased stress causes local inflammation and pain. The most common cause of the stress is a condition where the inside arch of the foot flattens more than it should (often known as "over-pronation"). When the arch of the foot flattens, it also gets longer, causing a stretch on the plantar fascia. In response, the heel becomes inflamed where the plantar fascia attaches.
Intense heel pain, especially first thing in the morning and after a long day. Difficulty walking or standing for long periods without pain. Generally, the sharp pain associated with plantar fasciitis is localized to the heel, but it can spread forward along the arch of the foot and back into the Achilles tendon. While severe cases can result in chronic pain that lasts all day, the most common flare ups occur first thing in the morning, making those first steps out of bed a form of torture, and in the evening after having spent a day on your feet. Overpronation (a foot that naturally turns too far inward), high arches, and flat feet (fallen arches) can all cause similar arch pain. In these cases, however, the pain is more likely to continue throughout the day rather than being worst in the morning.
Diagnosis of a plantar plate tear can often be challenging due to the complex nature of the anatomy of the foot. Careful history taking and an examination of the area of pain is required to determine the extent and cause of the tear. If necessary, further investigations such as x-rays or diagnostic ultrasound may be ordered by your podiatrist to help evaluate the severity of the problem.
Non Surgical Treatment
Treatment for a high arch foot or Charcot Marie Tooth disorder depends on the extent of deformity and the amount of disability experienced by the patient. Depending upon the symptoms, treatment may include. Changing the shoes. Special orthotic supports (devices that support, adjust, or accommodate the foot deformity). Cushioning pads. Foot and ankle braces or surgery.
If pain or foot damage is severe, your doctor may recommend surgery. Procedures may include the following. Fusing foot or ankle bones together (arthrodesis). Removing bones or bony growths also called spurs (excision). Cutting or changing the shape of the bone (osteotomy). Cleaning the tendons' protective coverings (synovectomy). Adding tendon from other parts of your body to tendons in your foot to help balance the "pull" of the tendons and form an arch (tendon transfer). Grafting bone to your foot to make the arch rise more naturally (lateral column lengthening).
Maintain a healthy weight, Use insoles to support your arches, Limit how often you wear high heels, Use proper shoes, especially when exercising to evenly distribute weight through your foot.
Below are two simple plantar fasciitis stretching exercises to help improve the flexibility of the muscles and tendons around the foot and ankle. Plantar fasciitis stretch taken from The Stretching Handbook. Kneel on one foot and place your body weight over your knee. Keep your heel on the ground and lean forward. In the photo to the left, the athlete is stretching the arch of her left foot. Kneel on one foot with your hands on the ground. Place your body weight over your knee and slowly move your knee forward. Keep your toes on the ground and arch your foot. In the photo to the right, the athlete is stretching the arch of his right foot.