The plantar fascia is a thickened fibrous aponeurosis that originates from the medial tubercle of the calcaneus and runs forward to form the longitudinal foot arch. The function of the plantar fascia is to provide static support of the longitudinal arch and dynamic shock absorption. Individuals with pes planus (low arches or flat feet) or pes cavus (high arches) are at increased risk for developing plantar fasciitis.
The plantar fascia is designed to absorb the high stresses and strains we place on our feet. But, sometimes, too much pressure damages or tears the tissues. The body's natural response to injury is inflammation, which results in the heel pain and stiffness of plantar fasciitis.
The classic sign of plantar fasciitis is that the worst pain occurs with the first few steps in the morning, but not every patient will have this symptom. Patients often notice pain at the beginning of activity that lessens or resolves as they warm up. The pain may also occur with prolonged standing and is sometimes accompanied by stiffness. In more severe cases, the pain will also worsen toward the end of the day.
Plantar fasciitis is one of many conditions causing "heel pain". Some other possible causes include nerve compression either in the foot or in the back, stress fracture of the calcaneus, and loss of the fatty tissue pad under the heel. Plantar fasciitis can be distinguished from these and other conditions based on a history and examination done by a physician. It should be noted that heel spurs are often inappropriately thought to be the sole cause of heel pain. In fact, heel spurs are common and are nothing more than the bone's response to traction or pulling-type forces from the plantar fascia and other muscles in the foot where they attach to the heel bone. They are commonly present in patients without pain, and frequently absent from those who have pain. It is the rare patient who has a truly enlarged and problematic spur requiring surgery.
Non Surgical Treatment
Rest the foot as much as you can, especially during the beginning of the treatment. Try to avoid unnecessary foot activity like running, or excess standing. Instead, perform exercises that do not put stress on the injured foot, like bicycling or swimming. Apply ice to the painful area a few times a day to reduce inflammation. Try rolling the arch of the foot over a tennis ball or a baseball. A good treatment is rolling the arch of the foot over a frozen soft drink can. This exercise cools and stretches the affected area. You can use over-the-counter pain relievers (ibuprofen, naproxen) to reduce pain and inflammation. Use an over-the-counter arch support or heel support. Avoid walking barefoot, because it may add stress on the plantar fascia. Exercise your feet to make the muscles, ligaments, tendons and other parts stronger. Stronger foot muscles give better support to the plantar fascia preventing it from another injury. Stretching the foot, the plantar fascia and the calf muscles a few times a day is an essential part of treatment and prevention.
Surgery may be considered in very difficult cases. Surgery is usually only advised if your pain has not eased after 12 months despite other treatments. The operation involves separating your plantar fascia from where it connects to the bone; this is called a plantar fascia release. It may also involve removal of a spur on the calcaneum if one is present. Surgery is not always successful. It can cause complications in some people so it should be considered as a last resort. Complications may include infection, increased pain, injury to nearby nerves, or rupture of the plantar fascia.