The plantar fascia acts like a bowstring and supports the arch and several muscles inside the foot. When there is increased stress on the arch, microscopic tears can occur within the plantar fascia,
usually at its attachment on the heel. This results in inflammation and pain with standing and walking and sometimes at rest.
It is common to see patients with Plantar Fasciitis who have been wearing shoes that are too soft and flexible. The lack of support can be stressful on the heel for those patients whoâs feet
arenât particularly stable. If these ill fitting shoes are worn for long enough, the stress will lead to Heel Pain as the inflammation of the fascia persists. Footwear assessment and advice will be
essential in order to get on top of the Plantar Fasciitis. It may surprise some people to learn that high heeled shoes are not the cause of Plantar Fasciitis, although they can cause tight calf
muscles. High arches can lead to Plantar Fasciitis. This is due to the lack of contact under the sole of the foot. Even sports shoes which appear to have good arch support inside are often too soft
and not high enough to make contact with the arch of the foot. Hence, the plantar fascia is unsupported. This can lead to Heel pain and Plantar Fasciitis. Flat feet can lead to Plantar Fasciitis.
Flat feet is caused by ligament laxity and leads to foot instability. Other structures such as muscles, tendons and fascia work harder to compensate for this instability. Heel pain or Plantar
Fasciitis arises when the instability is too great for these other structures to cope with. The strain on the fascia is too severe and the inflammation sets in. Over stretching can lead to Plantar
Fasciitis. Certain calf stretches put the foot into a position that creates a pulling sensation through the sole of the foot. This can cause Plantar Fasciitis which can cause pain in the arch of the
foot as well as Heel Pain.
Patients experience intense sharp pain with the first few steps in the morning or following long periods of having no weight on the foot. The pain can also be aggravated by prolonged standing or
sitting. The pain is usually experienced on the plantar surface of the foot at the anterior aspect of the heel where the plantar fascia ligament inserts into the calcaneus. It may radiate proximally
in severe cases. Some patients may limp or prefer to walk on their toes. Alternative causes of heel pain include fat pad atrophy, plantar warts and foreign body.
Plantar fasciitis is usually diagnosed by a health care provider after consideration of a personâs presenting history, risk factors, and clinical examination. Tenderness to palpation along the
inner aspect of the heel bone on the sole of the foot may be elicited during the physical examination. The foot may have limited dorsiflexion due to tightness of the calf muscles or the Achilles
tendon. Dorsiflexion of the foot may elicit the pain due to stretching of the plantar fascia with this motion. Diagnostic imaging studies are not usually needed to diagnose plantar fasciitis.
However, in certain cases a physician may decide imaging studies (such as X-rays, diagnostic ultrasound or MRI) are warranted to rule out other serious causes of foot pain. Bilateral heel pain or
heel pain in the context of a systemic illness may indicate a need for a more in-depth diagnostic investigation. Lateral view x-rays of the ankle are the recommended first-line imaging modality to
assess for other causes of heel pain such as stress fractures or bone spur development. Plantar fascia aponeurosis thickening at the heel greater than 5 millimeters as demonstrated by ultrasound is
consistent with a diagnosis of plantar fasciitis. An incidental finding associated with this condition is a heel spur, a small bony calcification on the calcaneus (heel bone), which can be found in
up to 50% of those with plantar fasciitis. In such cases, it is the underlying plantar fasciitis that produces the heel pain, and not the spur itself. The condition is responsible for the creation of
the spur though the clinical significance of heel spurs in plantar fasciitis remains unclear.
Non Surgical Treatment
Check your shoes to make sure they offer sufficient support and motion control. They should bend only at the ball of the foot, where your toes attach to the foot. This is very important. Avoid any
shoe that bends in the center of the arch or behind the ball of the foot. It offers insufficient support and will stress your plantar fascia. The human foot was not designed to bend here and neither
should a shoe be designed to do this. You may also strengthen the muscles in your arch by performing toe curls or "doming". Toe curls may be done by placing a towel on a kitchen floor and then
curling your toes to pull the towel towards you. This exercise may also be done without the towel against the resistance of the floor. Plantar fasciitis is usually controlled with conservative
treatment. Besides surgery and cortisone injections, physical therapy modalities such as electrical stimulation and ultrasound can be used. Often the foot will be taped to limit pronation. Following
control of the pain and inflammation an orthotic (a custom made shoe insert) can be used to control over-pronation.
In unusual cases, surgical intervention is necessary for relief of pain. These should only be employed after non-surgical efforts have been used without relief. Generally, such surgical procedures
may be completed on an outpatient basis in less than one hour, using local anesthesia or minimal sedation administrated by a trained anesthesiologist. In such cases, the surgeon may remove or release
the injured and inflamed fascia, after a small incision is made in the heel. A surgical procedure may also be undertaken to remove bone spurs, sometimes as part of the same surgery addressing the
damaged tissue. A cast may be used to immobilize the foot following surgery and crutches provided in order to allow greater mobility while keeping weight off the recovering foot during healing. After
removal of the cast, several weeks of physical therapy can be used to speed recovery, reduce swelling and restore flexibility.
The following exercises are commonly prescribed to patients with this condition. You should discuss the suitability of these exercises with your physiotherapist prior to beginning them. Generally,
they should be performed 2 - 3 times daily and only provided they do not cause or increase symptoms. Your physiotherapist can advise when it is appropriate to begin the initial exercises and
eventually progress to the intermediate and advanced exercises. As a general rule, addition of exercises or progression to more advanced exercises should take place provided there is no increase in
symptoms. Calf Stretch with Towel. Begin this stretch in long sitting with your leg to be stretched in front of you. Your knee and back should be straight and a towel or rigid band placed around your
foot as demonstrated. Using your foot, ankle and the towel, bring your toes towards your head until you feel a stretch in the back of your calf, Achilles tendon, plantar fascia or leg. Hold for 5
seconds and repeat 10 times at a mild to moderate stretch provided the exercise is pain free. Resistance Band Calf Strengthening. Begin this exercise with a resistance band around your foot as
demonstrated and your foot and ankle held up towards your head. Slowly move your foot and ankle down against the resistance band as far as possible and comfortable without pain, tightening your calf
muscle. Very slowly return back to the starting position. Repeat 10 - 20 times provided the exercise is pain free.