The calcaneal squeeze test—also known as the heel squeeze test or calcaneal compression test—is a widely used clinical maneuver designed to evaluate heel pain and identify underlying bony pathology of the calcaneus. Its value lies in its simplicity, non‑invasiveness, and strong diagnostic utility for conditions such as calcaneal stress fractures and calcaneal apophysitis (Sever’s disease). Across sports medicine, podiatry, orthopedics, and general practice, the test serves as a first‑line assessment tool that helps clinicians differentiate between soft‑tissue and bony causes of heel pain, guiding decisions about imaging, treatment, and activity modification.

Anatomical and Clinical Background

The calcaneus is the largest tarsal bone and the primary weight‑bearing structure of the hindfoot. It absorbs substantial impact forces during gait, running, and jumping. Because of this mechanical load, the calcaneus is vulnerable to stress reactions, stress fractures, and traction‑related inflammation at the growth plate in children. Stress fractures often develop gradually from repetitive loading, particularly in runners, military recruits, and individuals who stand or walk on hard surfaces for prolonged periods.

In children aged 8–15, the calcaneal growth plate (apophysis) is still open, making it susceptible to overuse injury known as Sever’s disease. This condition is one of the most common causes of heel pain in active adolescents.

Because early symptoms of heel pain can be nonspecific, clinicians rely on targeted physical examination maneuvers—chief among them the calcaneal squeeze test—to narrow the differential diagnosis.

How the Calcaneal Squeeze Test Is Performed

The test is straightforward and requires no equipment. The patient may be positioned prone, side‑lying, or seated with the foot relaxed. The examiner places one hand on the medial side of the calcaneus and the other on the lateral side, then applies firm mediolateral compression across the calcaneal body.

A positive test occurs when this compression reproduces deep, localized heel pain, typically described as a dull ache rather than superficial tenderness. The clinician may repeat the squeeze at different levels of the calcaneus to localize the pain more precisely. Comparing both heels is essential, especially in pediatric patients where bilateral symptoms are common in Sever’s disease.

Diagnostic Value and Sensitivity

The calcaneal squeeze test is valued for its high sensitivity in detecting calcaneal bony pathology:

• Calcaneal stress fractures: Sensitivity ranges from 76–100%, depending on the stage of the fracture. arcanephysio.com

• Sever’s disease: Sensitivity is 97% and specificity 100%, making it one of the most reliable clinical indicators for calcaneal apophysitis.

These metrics highlight the test’s strength as a screening tool. While imaging—particularly MRI—is the gold standard for confirming stress fractures, a positive squeeze test often justifies further investigation.

Clinical Conditions Identified by the Test

1. Calcaneal Stress Fracture

A stress fracture of the calcaneus is a small crack caused by repetitive loading rather than acute trauma. Patients typically report:

• Gradually worsening heel pain

• Pain aggravated by weight‑bearing

• Localized tenderness

The squeeze test is especially useful because early stress fractures may not appear on X‑ray. A positive test suggests the need for MRI or CT imaging.

2. Sever’s Disease (Calcaneal Apophysitis)

In active children and adolescents, the squeeze test is considered a key diagnostic maneuver. When combined with pain during one‑leg heel standing, it is often sufficient to diagnose Sever’s disease without imaging.

3. Differentiation from Soft‑Tissue Pathology

The test helps distinguish bony pathology from:

• Plantar fasciopathy

• Achilles tendinopathy

Both conditions typically produce negative squeeze tests because the pain arises from soft tissue rather than the calcaneal body.

Interpretation of Findings

A positive calcaneal squeeze test indicates that mediolateral compression stresses the calcaneal trabeculae enough to reproduce pain, suggesting internal bony involvement. Clinicians must interpret the result in context:

• Pain with squeeze but not with weight‑bearing may indicate an early stress reaction.

• Pain with both squeeze and weight‑bearing suggests a more advanced stress fracture.

• Bilateral positive tests in children strongly point toward Sever’s disease. arcanephysio.com

A negative test reduces the likelihood of bony pathology and shifts the diagnostic focus toward soft‑tissue or neurologic causes of heel pain.

Role in Broader Clinical Assessment

The calcaneal squeeze test is rarely used in isolation. It forms part of a comprehensive heel pain evaluation that includes:

• Palpation of the plantar fascia

• Assessment of Achilles tendon integrity

• Gait analysis

• Evaluation of footwear and activity patterns

In cases of suspected stress fracture, clinicians may also assess for swelling, ecchymosis, or inability to bear weight—though these signs are more common in traumatic fractures than stress injuries.

When Imaging Is Indicated

While the squeeze test is highly sensitive, imaging is required when:

• Pain is severe or worsening

• The patient is an athlete needing a definitive diagnosis

• There is suspicion of a hairline fracture not visible on X‑ray

• Symptoms persist despite conservative management

MRI is the preferred modality for diagnosing calcaneal stress fractures due to its ability to detect early bone marrow edema.

Clinical Importance and Advantages

The calcaneal squeeze test offers several advantages:

1. Non‑invasive and Quick

It can be performed in seconds without equipment, making it ideal for primary care and sports settings.

2. High Diagnostic Yield

Its strong sensitivity and specificity—especially in pediatric populations—make it a reliable first‑line test.

3. Helps Avoid Unnecessary Imaging

In children with classic Sever’s disease symptoms, a positive squeeze test may eliminate the need for radiographs or MRI.

4. Guides Early Intervention

Early identification of stress fractures allows clinicians to recommend rest, immobilization, or activity modification before the injury worsens.

Limitations and Common Errors

Despite its usefulness, the test has limitations:

• It cannot determine the severity of a fracture.

• It may be falsely negative in very early stress reactions.

• Incorrect technique—such as applying anteroposterior instead of mediolateral compression—reduces accuracy.

• Failure to compare both heels may lead to misinterpretation.

Conclusion

The calcaneal squeeze test is a cornerstone of heel pain assessment, offering a simple yet powerful method for detecting calcaneal stress fractures and Sever’s disease. Its high sensitivity, ease of use, and ability to differentiate bony from soft‑tissue pathology make it indispensable in clinical practice. While not a substitute for imaging when definitive diagnosis is required, it serves as an essential screening tool that guides further evaluation and management. By enabling early detection of calcaneal pathology, the squeeze test helps clinicians intervene promptly, reduce patient discomfort, and prevent progression of injury.