Plantar Fasciitis vs Calcaneal Stress Fracture

Updated On:

May

15

Joe Armeli | DPT

Plantar fasciitis vs calcaneal stress fracture.

Key Points: 

Aspect

Plantar Fasciitis

Calcaneal Stress Fracture

Definition

Inflammation of the plantar fascia ligament along the bottom of the foot.

A small crack or fissure in the heel bone (calcaneus), typically due to overuse or sudden increases in physical activity.

Causes

Overuse, micro-tears from overstretched fascia.

Repetitive stress and overuse, often from high-impact activities

Symptoms

Achy, stiff heels and arches Redness, swelling, and inflammation

Pain worse in the morning or after inactivity, improves with activity

Persistent dull or sharp pain

Intense heel pain when bearing weight

Pain worsens with activity, improves with rest

Sensitivity to touch, swelling Unexplained night pain

Diagnostic Methods

Based on patient history, symptoms, and clinical examination, imaging tests like x-rays to rule out other conditions (not always necessary)

Requires imaging tests like x-rays, MRI, or bone scans to confirm the presence of a fracture

As a physical therapist and running coach, I often encounter patients who experience heel pain, a common complaint that can significantly affect mobility and quality of life.

Two prevalent causes of heel pain are Plantar Fasciitis and Calcaneal Stress Fracture.

Despite their similar symptom of heel pain, these conditions stem from different underlying causes and require distinct treatment approaches.

What is Plantar Fasciitis?

Showing the path in the anatomy of the plantar fascia.

Plantar Fasciitis is primarily an overuse-related condition affecting the plantar fascia—the thick, fibrous band of tissue that stretches from the heel to the toes along the bottom of your foot. This condition often results from micro-tears in the fascia leading to pain.

What is a Calcaneal Stress Fracture?

Showing the calcaneus bone of the foot.

In contrast, a Calcaneal Stress Fracture is a small crack in the heel bone (calcaneus), often resulting from repetitive stress or a sudden increase in physical activity. This type of fracture is common among athletes, military personnel, and those engaged in high-impact sports.

Causes of Plantar Fasciitis and Calcaneal Stress Fracture

Infographic comparing the causes of plantar fasciitis to a calcaneal stress fracture

Heel pain can stem from various factors, but you need to  understanding the specific causes of conditions like Plantar Fasciitis and Calcaneal Stress Fracture so you can  effectively prevention and treatment. Let's break down the primary causes of each condition:

Causes of Plantar Fasciitis

Plantar Fasciitis is often the result of stress and strain on the plantar fascia. This condition doesn't just appear; it's typically the culmination of repeated stress which can be due to several factors:

  • Overuse: Regular, repetitive motion involving the plantar fascia, especially in scenarios where the feet are under continual stress, can lead to inflammation and micro-tears.
  • Flat Feet: When the foot rolls inward excessively upon landing, it can stretch the plantar fascia beyond its normal range. This is common in individuals with biomechanical imbalances such as flat feet.
  • Increased Weight or Obesity: Extra weight puts additional stress on the plantar fascia, increasing the likelihood of inflammation.
  • High-Impact Activities: Engaging in activities like running or jumping, especially without shoes that provide adequate support, significantly stresses the plantar fascia.

Understanding these causes of plantar fasciitis can help in addressing the root causes of Plantar Fasciitis, whether through lifestyle adjustments, footwear changes, or therapeutic interventions.

Causes of Calcaneal Stress Fracture

Unlike Plantar Fasciitis, which involves soft tissue, a Calcaneal Stress Fracture is a bone injury that typically results from:

  • Repetitive Stress and Overuse: Activities that involve high impact on the feet, such as running, intense sports, or rigorous military training, can gradually wear down the heel bone, leading to fractures.
  • Weak or Brittle Bones: Conditions like osteoporosis or the side effects of certain medications can reduce bone density and strength, making bones more susceptible to fractures.
  • Rapid Increases in Activity Level: Suddenly increasing the intensity or duration of physical activities without proper conditioning can shock the bones in the foot, leading to stress fractures.
  • Carrying Heavy Loads: Regularly carrying heavy loads, especially during long walks or runs, can also stress the heel bone excessively.

By identifying the specific activities or conditions that increase the risk of a Calcaneal Stress Fracture, you can take proactive steps to mitigate these risks, such as strengthening exercises, properly pacing activity levels, and ensuring good nutrition for bone health.

Symptoms of Plantar Fasciitis and Calcaneal Stress Fracture

Both Plantar Fasciitis and Calcaneal Stress Fracture can cause heel pain, but the nature and triggers of this pain differ substantially between the two. Recognizing these symptoms can help differentiate between them, ensuring the correct treatment approach.

Symptoms of Plantar Fasciitis

Plantar Fasciitis is characterized by pain that is typically worse after periods of inactivity but may improve with movement as the day progresses. Common symptoms include:

  • Achy and Stiff Heels: The pain often starts as a dull ache in the heel and arch that can intensify if left untreated.
  • Redness, Swelling, and Inflammation: These are visible signs that can occur around the heel and along the arch, indicating inflammation of the plantar fascia.
  • Morning Pain: A distinctive feature of plantar fasciitis is intense pain in the morning or after long periods of sitting, which improves after a few minutes of walking as the fascia stretches and warms up.
  • Variation in Pain: The pain can range from a persistent dull ache to sharp, severe discomfort that may cause limping.
  • Relief with Rest and Treatment: Symptoms often improve with rest, proper stretching exercises, and application of ice to reduce pain.

These symptoms are typically managed with conservative treatment strategies, focusing on reducing inflammation and strengthening the surrounding muscles.

Symptoms of Calcaneal Stress Fracture

A Calcaneal Stress Fracture, however, presents differently, often related to the intensity of physical activities:

  • Intense Heel Pain: This pain is exacerbated when weight is placed on the heel and can be severe enough to prevent normal walking.
  • Activity-Related Pain: Unlike plantar fasciitis, the pain associated with a stress fracture worsens with physical activity and generally improves with rest.
  • Sensitivity and Swelling: The heel may be tender to the touch, with swelling around the painful area.
  • Night Pain: Some individuals may experience unexplained pain at night or while resting, which can be a perplexing symptom.
  • Fluctuating Intensity: The severity of the pain can vary, with episodes of more intense pain depending on activity levels and rest periods.

Treatment for a calcaneal stress fracture often requires more intensive intervention, such as immobilization and sometimes surgical options, depending on the severity.

Diagnosing Plantar Fasciitis and Calcaneal Stress Fracture

While both Plantar Fasciitis and Calcaneal Stress Fracture manifest as heel pain, their diagnostic procedures differ significantly due to the nature of each condition. Here’s how healthcare providers typically diagnose these ailments:

Diagnosing Plantar Fasciitis

Plantar Fasciitis diagnosis is primarily clinical, based on a combination of patient history, symptoms, and physical examination:

  • Patient History and Symptoms: The diagnosis begins with a detailed discussion about the your symptoms, especially noting pain that is worse in the morning or after periods of rest and improves with movement.
  • Clinical Examination: A healthcare provider will examine the foot for areas of tenderness, particularly in the heel and along the arch. 
  • Imaging Tests: While not always necessary, imaging such as x-rays may be utilized to rule out other causes of heel pain, such as bone spurs or fractures, which might mimic or coexist with plantar fasciitis.

This approach allows for a thorough understanding of the symptoms and their impact on daily activities, guiding the subsequent treatment plan.

Diagnosing Calcaneal Stress Fracture

In contrast, diagnosing a Calcaneal Stress Fracture often requires more than a clinical examination:

  • Imaging Tests: X-rays are commonly the first step in imaging but may only sometimes detect early stress fractures due to their subtle nature. If X-rays are inconclusive, more sensitive imaging techniques like MRI or bone scans are employed to confirm the presence of a fracture.
  • Clinical Assessment: Alongside imaging, the healthcare provider will assess the patient's symptoms, such as heel pain that intensifies with activity and subsides with rest. Sensitivity to touch and swelling in the heel are also key indicators.
  • Review of Activity Level and Medical History: Understanding the patient’s recent activities and overall health can help link symptoms to a stress fracture, especially in cases involving sudden increases in physical activity or underlying bone health issues.

The combination of imaging and clinical evaluation provides a comprehensive approach to accurately diagnosing a Calcaneal Stress Fracture, ensuring that treatment can be as targeted and effective as possible.

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About the author, Joe Armeli DPT

I'm Joe Armeli, a Doctor of Physical Therapy, Certified Athletic Trainer and Certified Strength and Conditioning Specialist, a movement enthusiast, and a fellow runner. I'm here to help you achieve your physical health and performance goals, whether you're just starting to run or are a seasoned vet. For questions or concerns, email me at [email protected]. Look forward to hearing from you!

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