Plantar fasciitis is the most common cause of heel pain in runners, eventually affecting 10 percent of the running community. While running, the plantar fascia works with the Achilles tendon to store and return energy. Because of its powerful attachment to the base of the toe, the plantar fascia stabilizes the inner forefoot as forces peak during pushoff. Unlike bone spurs and stress fractures of the heel, plantar fasciitis tends to produce pain during the pushoff phase while running, not during initial contact. A simple way to tell if you have plantar fasciitis versus a heel spur/stress fracture is to walk on your toes: heel spurs and heel stress fractures feel better while you walk on your toes, while plantar fasciitis typically produces more discomfort when you shift your weight onto your toes.
Plantar fasciitis occurs when the thick band of tissue on the bottom of the foot is overstretched or overused. This can be painful and make walking more difficult. You are more likely to get plantar fasciitis if you Have foot arch problems (both flat feet and high arches), run long distances, downhill or on uneven surfaces, are obese or gain weight suddenly, have a tight Achilles tendon (the tendon connecting the calf muscles to the heel), wear shoes with poor arch support or soft soles. Plantar fasciitis is seen in both men and women. However, it most often affects active men ages 40 - 70. It is one of the most common orthopedic foot complaints. Plantar fasciitis was commonly thought to be caused by a heel spur. However, research has found that this is not the case. On x-ray, heel spurs are seen in people with and without plantar fasciitis.
The pain associated with plantar fasciitis is typically gradual in onset and is usually located over the inner or medial aspect of the heel. Occasionally, the pain will be sudden in onset, occurring after missing a step or after jumping from a height. The pain is commonly most severe upon arising from bed in the morning, or after periods of inactivity during the day. Thus, it causes what is known as "first-step pain." The degree of discomfort can sometimes lessen with activity during the course of the day or after "warming-up", but can become worse if prolonged or vigorous activity is undertaken. The pain is also often noted to be more severe in bare feet or in shoes with minimal or no padding at the sole.
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
Plantar fasciitis treatment can be conservative (non-surgical) or invasive (surgical). Among the non-surgical ways to manage plantar fasciitis involves stretching and icing exercises. A night splint which help stretch the Achilles tendon and plantar fascia overnight, so that they can be more easily stretched during the morning. Orthotics that can be custom-made for the feet can also distribute tension on the feet more consistently. Corticosteroid is injected into the affected area to relieve pain and decrease inflammation. Doctors may also use extracorporeal shockwave therapy before considering plantar fasciitis surgery. During the therapy, sound waves are used to stimulate the affected area and eventually heal it. Physical therapy incorporation, deep massage stretching, and other modalities can at times be a helpful adjunct treatment. Surgery for plantar fasciitis is only considered when all other conservative treatments have failed.
The majority of patients, about 90%, will respond to appropriate non-operative treatment measures over a period of 3-6 months. Surgery is a treatment option for patients with persistent symptoms, but is NOT recommended unless a patient has failed a minimum of 6-9 months of appropriate non-operative treatment. There are a number of reasons why surgery is not immediately entertained including. Non-operative treatment when performed appropriately has a high rate of success. Recovery from any foot surgery often takes longer than patients expect. Complications following this type of surgery can and DO occur! The surgery often does not fully address the underlying reason why the condition occurred therefore the surgery may not be completely effective. Prior to surgical intervention, it is important that the treating physician ensure that the correct diagnosis has been made. This seems self-evident, but there are other potential causes of heel pain. Surgical intervention may include extracorporeal shock wave therapy or endoscopic or open partial plantar fasciectomy.