If your first few steps out of bed in the morning cause severe pain in the heel of your foot, you may have plantar fasciitis, an overuse injury that affects the sole of the foot. A diagnosis of
plantar fasciitis means you have inflamed the tough, fibrous band of tissue (fascia) connecting your heel bone to the base of your toes.
Plantar fasciitis can develop when your feet roll in too far as you take each step. This rolling in, known as over-pronation, can happen for many reasons. It can be due to excessive weight gain,
pregnancy, quickly increasing physical activity, tight calf muscles, poor biomechanics or merely wearing unsupportive, flat footwear. When your feet over-pronate, your arches can collapse, putting
strain on the tissues in the bottom of your foot.
When a patient has plantar fasciitis, the connective tissue that forms the arch of the foot becomes inflamed (tendonitis) and degenerative (tendinosis)--these abnormalities cause plantar fasciitis
and can make normal activities quite painful. Symptoms of plantar fasciitis are typically worsened early in the morning after sleep. At that time, the arch tissue is tight and simple movements
stretch the contracted tissue. As you begin to loosen the foot, the pain usually subsides, but often returns with prolonged standing or walking.
Plantar fasciosis is confirmed if firm thumb pressure applied to the calcaneus when the foot is dorsiflexed elicits pain. Fascial pain along the plantar medial border of the fascia may also be
present. If findings are equivocal, demonstration of a heel spur on x-ray may support the diagnosis; however, absence does not rule out the diagnosis, and visible spurs are not generally the cause of
symptoms. Also, infrequently, calcaneal spurs appear ill defined on x-ray, exhibiting fluffy new bone formation, suggesting spondyloarthropathy (eg, ankylosing spondylitis, reactive arthritis. If an
acute fascial tear is suspected, MRI is done.
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 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.