Plantar fasciitis is one of the most common conditions causing heel pain. The condition involves inflammation of the plantar fascia -- a tough, fibrous band of tissue that runs along the sole of the
foot with attachments to the heel bone (calcaneus) proximally and to the base of the toes distally. The plantar fascia provides support to the arch of the foot and has an important role in normal
foot mechanics during walking. Tension or stress in the plantar fascia increases when one places weight on the foot (such as with standing) and as one pushes off on the ball of the foot and toes --
motions which occur during normal walking or running. Inflammation and pain start in the fascia either as a result of an increase in activity level (as in initiating a walking or running program), or
in association with the normal aging process. With aging, the fascia loses some of its normal elasticity or resilience and can become irritated with routine daily activities. Less commonly, plantar
fasciitis can develop in association with general medical conditions such as lupus or rheumatoid arthritis.
This is a problem of either extreme, so people with high arches or those that have very flat feet are at risk of developing pain in this region. This is because of the relative stress the plantar
fascia is put under. In people with excessive pronation, the plantar fascia is put under too much stretch, as their range flattens and strains it. People with a stiff, supinated (high-arched) foot
lack the flexibility to appropriately shock absorb, so this too puts extra strain on the plantar fascia. Clinically, we see more people presenting with plantar fascia pain who have excessive
pronation than those with stiff, supinated feet. But while the foot type is the biggest risk factor for plantar fasciitis, the whole leg from the pelvis down can affect how the foot hits the ground.
A thorough biomechanical assessment will determine where in the kinetic chain things have gone wrong to cause the overload.
The heel pain characteristic of plantar fasciitis is usually felt on the bottom of the heel and is most intense with the first steps of the day. Individuals with plantar fasciitis often have
difficulty with dorsiflexion of the foot, an action in which the foot is brought toward the shin. This difficulty is usually due to tightness of the calf muscle or Achilles tendon, the latter of
which is connected to the back of the plantar fascia. Most cases of plantar fasciitis resolve on their own with time and respond well to conservative methods of treatment.
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
The good news is that plantar fasciitis is reversible and very successfully treated. About 90 percent of people with plantar fasciitis improve significantly within two months of initial treatment. If
your plantar fasciitis continues after a few months of conservative treatment, your doctor may inject your heel with steroidal anti-inflammatory medications (corticosteroid). Cortisone injections
have been shown to have short-term benefits but they actually retard your progress in the medium to long-term, which usually means that you will suffer recurrent bouts for longer. Due to poor foot
biomechanics being the primary cause of your plantar fasciitis it is vital to thoroughly assess and correct your foot and leg biomechanics to prevent future plantar fasciitis episodes or the
development of a heel spur. Your physiotherapist is an expert in foot assessment and its dynamic biomechanical correction. They may recommend that you seek the advice of a podiatrist, who is an
expert in the prescription on passive foot devices such as orthotics.
In cases that do not respond to any conservative treatment, surgical release of the plantar fascia may be considered. Plantar fasciotomy may be performed using open, endoscopic or radiofrequency
lesioning techniques. Overall, the success rate of surgical release is 70 to 90 percent in patients with plantar fasciitis. Potential risk factors include flattening of the longitudinal arch and heel
hypoesthesia as well as the potential complications associated with rupture of the plantar fascia and complications related to anesthesia.