Plantar Fasciitis is the Latin term for “inflammation of the plantar fascia”. The plantar fascia is a thick, fibrous ligament that runs under the foot from the heel bone to the toes. It forms the arch of the foot and functions as our natural shock-absorbing mechanism. Unlike muscle tissue, the plantar fascia is not very elastic and therefore is very limited in its capacity to stretch or elongate. Herein lies the problem, when too much traction is placed on the plantar fascia (for various reasons) micro-tearing will occur, resulting in irritation, inflammation and pain. Plantar Fasciitis usually causes pain under the heel. However some people may experience pain under the arch of the foot. Both heel pain and arch discomfort are related to Plantar Fasciitis, with heel pain being far more common than arch pain.
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 most obvious symptom of plantar fasciitis is a sharp pain on the bottom of the foot, near the heel. Here are some signals that this pain may be plantar fasciitis. The pain is strongest first thing in the morning but gets better after a few minutes of walking around. The pain is worse after standing for a long time or after getting up from sitting. The pain develops gradually and becomes worse over time. The pain is worse after exercise or activity than it is during activity. It hurts when stretching the foot. It hurts when pressing on the sides of the heel or arch of the foot.
Plantar fasciitis is usually diagnosed by a health care provider after consideration of a person’s 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
In general, we start by correcting training errors. This usually requires relative rest, the use of ice after activities, and an evaluation of the patient’s shoes and activities. Next, we try correction of biomechanical factors with a stretching and strengthening program. If the patient still has no improvement, we consider night splints and orthotics. Finally, all other treatment options are considered. Non-steroidal anti-inflammatory medications are considered throughout the treatment course, although we explain to the patient that this medicine is being used primarily for pain control and not to treat the underlying problem.
Surgery should be reserved for patients who have made every effort to fully participate in conservative treatments, but continue to have pain from plantar fasciitis. Patients should fit the following criteria. Symptoms for at least 9 months of treatment. Participation in daily treatments (exercises, stretches, etc.). If you fit these criteria, then surgery may be an option in the treatment of your plantar fasciitis. Unfortunately, surgery for treatment of plantar fasciitis is not as predictable as a surgeon might like. For example, surgeons can reliably predict that patients with severe knee arthritis will do well after knee replacement surgery about 95% of the time. Those are very good results. Unfortunately, the same is not true of patients with plantar fasciitis.
Plantar fasciitis can be a nagging problem, which gets worse and more difficult to treat the longer it’s present. To prevent plantar fasciitis, run on soft surfaces, keep mileage increases to less than 10 percent per week, and visit a specialty running shop to make sure you’re wearing the proper shoes for your foot type and gait. It’s also important to stretch the plantar fascia and Achilles tendon.