eMedicine Specialties > Emergency Medicine > Trauma & Orthopedics
Plantar Fasciitis
Updated: Oct 2, 2008
Introduction
Background
Plantar fasciitis is the most common cause of heel pain for which professional care is sought. A variety of terms have been used to describe it including jogger's heel, tennis heel, Policeman's heel, and an outdated term, gonorrheal heel reflecting the old thought that it was somehow related to that sexually transmitted disease.
Pathophysiology
The plantar fascia originates on the medial tubercle of the calcaneus and fans out over the bottom of the foot to insert onto the proximal phalanges and the flexor tendon sheaths. It forms the longitudinal arch of the foot and functions as a shock-absorber as well an arch support. The term fasciitis may be somewhat of a misnomer since the disease is actually a degenerative process with or without inflammatory changes, which may include fibroblastic proliferation. This has been proven from biopsies of fascia from people undergoing surgery for plantar fascia release. It is commonly believed to be caused by repetitive microtrauma to the fascia.
Frequency
United States
Plantar fasciitis accounts for about 10% of runner-related injuries and 11-15% of all foot symptoms requiring professional care. It is thought to occur in 10% of the general population as well. It may present bilaterally in a third of cases.
Mortality/Morbidity
Plantar fascitis probably may lead to significant morbidity placing strict activity limitations on the patient. In addition, due to the pain in the foot leading to changes in patterns of bearing weight, associated additional injury to the hip and knee joints may also occur.
Race
Race and ethnicity play no role in the incidence of plantar fasciitis.
Sex
The condition occurs equally in both sexes in young people. Some studies show a peak incidence may occur in women aged 40-60 years.
Age
The condition can occur at any age. As mentioned, a peak incidence may occur in women aged 40-60 years.
Clinical
History
- The patient reports inferior heel pain with the first few steps taken in the morning or after other long periods of nonweightbearing.
- A limp may be present, and patients may prefer to walk on their toes.
- Initially, the pain decreases with ambulation but then increases throughout the day as activity increases. Pain is worsened by walking barefoot on hard surfaces or by walking up stairs.
- Associated paresthesias, nocturnal pain, or systemic symptoms should raise suspicion of other causes of heel pain (ie, neoplastic, infectious, neurologic causes).
- Patients may report that before the onset of pain, they had increased the amount or intensity of activity including, but not limited to, running or walking. They may have also started exercising on a different type of surface, or they may have recently changed footwear.
Physical
- The patient may have tenderness upon palpation of the anteromedial aspect of the heel.
- Ankle dorsiflexion may be limited due to tightness of the Achilles tendon.
- Pain may be exacerbated by passive dorsiflexion of the toes or by having the patient stand on his or her toes.
Causes
- The cause of plantar fasciitis is unclear and may be multifactorial. Because of the high incidence in runners, it is best postulated to be caused by repetitive microtrauma. Possible risk factors include obesity, occupations requiring prolonged standing, heel spurs, pes planus (excessive pronation of the foot), and reduced dorsiflexion of the ankle.
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References
Lee TG, Ahmad TS. Intralesional autologous blood injection compared to corticosteroid injection for treatment of chronic plantar fasciitis. A prospective, randomized, controlled trial. Foot Ankle Int. Sep 2007;28(9):984-90. [Medline].
Rompe JD, Furia J, Weil L, Maffulli N. Shock wave therapy for chronic plantar fasciopathy. Br Med Bull. 2007;81-82:183-208. [Medline].
Radford JA, Landorf KB, Buchbinder R, Cook C. Effectiveness of calf muscle stretching for the short-term treatment of plantar heel pain: a randomised trial. BMC Musculoskelet Disord. Apr 19 2007;8:36. [Medline].
Crawford F, Thomson C. Interventions for treating plantar heel pain. Cochrane Database Syst Rev. 2003;CD000416. [Medline].
DiGiovanni BF, Nawoczenski DA, Lintal ME, et al. Tissue-specific plantar fascia-stretching exercise enhances outcomes in patients with chronic heel pain. A prospective, randomized study. J Bone Joint Surg Am. Jul 2003;85-A(7):1270-7. [Medline].
Atkins D, Crawford F, Edwards J, Lambert M. A systematic review of treatments for the painful heel. Rheumatology (Oxford). Oct 1999;38(10):968-73. [Medline].
Buchbinder R. Clinical practice. Plantar fasciitis. N Engl J Med. May 20 2004;350(21):2159-66. [Medline].
Cole C, Seto C, Gazewood J. Plantar fasciitis: evidence-based review of diagnosis and therapy. Am Fam Physician. Dec 1 2005;72(11):2237-42. [Medline].
Hogan KA, Webb D, Shereff M. Endoscopic plantar fascia release. Foot Ankle Int. Dec 2004;25(12):875-81. [Medline].
Roxas M. Plantar fasciitis: diagnosis and therapeutic considerations. Altern Med Rev. Jun 2005;10(2):83-93. [Medline].
Further Reading
Keywords
plantar fasciitis, jogger's heel, tennis heel, bone spur, heel pain, pain on bottom of heel, exostosis, flat foot, highly-arched foot, excessively pronated foot, gait alteration, obesity, tight Achilles tendon,policeman's heel, pes planus, pes cavus
Overview: Plantar Fasciitis