Understanding Plantar Fasciitis

Overview

Plantar fasciitis is a prevalent heel condition affecting adults. It arises from inflammation of the thick tissues in the heel, primarily caused by collagen degeneration within the plantar fascia. Symptoms typically include heel pain, especially noticeable in the morning and after periods of inactivity. Approximately 10% of cases are linked to running, with military members and runners aged 40 to 60 being particularly susceptible. Fortunately, nearly 80% of individuals experiencing plantar fasciitis can manage their symptoms within a year, and only 5% require surgical intervention.

Risk Factors

The risk factors associated with plantar fasciitis are not fully understood due to limited research. However, several contributors have been identified, including obesity, prolonged standing, heel spurs, flat feet, and restricted ankle mobility. Among runners, repetitive stress injuries to the heel are thought to play a significant role. Specific running-related risk factors encompass sudden changes in pace or distance, inadequate footwear, uneven terrain, and a shortened Achilles tendon.

Diagnosis

Diagnosis of plantar fasciitis typically begins when patients report gradual heel pain that worsens with inactivity and intensifies after a full day of activity. Patients often experience difficulty moving their ankle due to tenderness. Distinguishing plantar fasciitis from other heel conditions can be challenging because of overlapping symptoms. Imaging techniques such as radiographs may be employed to exclude other issues. If necessary, bone scans can differentiate between plantar fasciitis and calcaneal stress fractures, while ultrasonography can reveal the condition by assessing the thickness of the plantar fascia, which can reach 5 to 7 mm. Magnetic resonance imaging (MRI) can demonstrate increased signal intensity from the thickened fascia and identify other underlying conditions, such as spondyloarthropathy.

Treatment

Treatment for plantar fasciitis may involve applying ice or heat, massaging the heel, and using nonsteroidal anti-inflammatory medications to alleviate pain. Stretching exercises and the application of supportive straps or tapes can also facilitate recovery, with many patients experiencing relief within the first eight weeks. Custom-made heel pads and orthotics can provide additional support to the heel, arch, and ankle.

A study comparing various treatments found that many patients preferred mechanical therapies over anti-inflammatory options. Corticosteroid injections may offer benefits if administered early, but they are not the initial treatment choice due to potential risks, including a 10% chance of fascia rupture. Silicone-cone inserts have also proven helpful for daily support. While splints and casts can restrict ankle movement, research indicates limited improvement when used at night compared to no treatment. Extracorporeal shock-wave therapy has shown promise in reducing morning pain in runners. In cases where conservative treatments fail, surgical options may be necessary, particularly for patients suffering from severe pain lasting 6 to 12 months. Although surgery can lead to recovery for many, some may experience complications such as calcaneal fractures, nerve damage, flat feet, or swelling of the heel pad.

Prevention

To prevent plantar fasciitis, individuals who frequently use their feet should engage in exercises that include stretching and massaging the heel. A combination of flexing, extending, lifting, and lowering the feet and toes may be beneficial. Additionally, wearing custom-made insoles during intense physical activity or as one ages can help mitigate the risk of developing this condition.

Disclaimer

This article is not intended to provide medical advice. If you are experiencing foot or heel pain, it is advisable to consult a healthcare professional.

References

1. Buchbinder R. Plantar fasciitis. New England Journal of Medicine. 2004;350(21):2159-2166. doi:10.1056/nejmcp032745
2. Young CC, Rutherford DS, Niedfeldt MW. Treatment of plantar fasciitis. American Family Physician. https://www.aafp.org/afp/2001/0201/p467.html?ref=binfind.com%2Fweb. Published February 1, 2001. Accessed October 2, 2021.
3. Bakayev V, Bolotin A. Plantar Fasciitis Prevention Technique based on Data Aggregation from Computer Diagnostics. icSPORTS 2018. https://www.researchgate.net/profile/Vladislav-Bakayev/publication/327910138_Plantar_Fasciitis_Prevention_Technique_based_on_Data_Aggregation_from_Computer_Diagnostics/links/5bae9076a6fdccd3cb7b9ab5/Plantar-Fasciitis-Prevention-Technique-based-on-Data-Aggregation-from-Computer-Diagnostics.pdf. Published September 2018. Accessed October 2, 2021.
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