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Eversion Trauma: Causes, Symptoms & Treatment

An eversion trauma is an injury to the ankle joint caused by the foot being forced outward. It primarily affects the inner ligaments and is common in sports activities.

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Things worth knowing about "Eversion trauma"

An eversion trauma is an injury to the ankle joint caused by the foot being forced outward. It primarily affects the inner ligaments and is common in sports activities.

What Is an Eversion Trauma?

An eversion trauma is an injury to the upper ankle joint caused by a sudden outward rotation of the foot. In this type of injury, the foot is forced laterally (outward) while the leg moves in a different direction. Unlike the more common inversion trauma — where the foot rolls inward — eversion trauma places stress primarily on the structures located on the inner (medial) side of the ankle.

Causes

Eversion trauma results from a sudden, uncontrolled outward movement of the foot. Common causes include:

Sports injuries, particularly in football, basketball, and running
Tripping or stumbling on uneven surfaces
Falls from height with a twisting motion of the foot
Traffic accidents

Affected Structures

The following anatomical structures are most commonly affected in an eversion trauma:

Deltoid ligament (medial collateral ligament): The strong inner ligament of the ankle, which is the most robust ligamentous structure of the upper ankle joint. It can be stretched, partially torn, or completely ruptured.
Syndesmosis: The fibrous joint connecting the tibia and fibula may also be damaged.
Bones: In severe cases, avulsion fractures or fractures of the medial or lateral malleolus may occur.

Symptoms

Typical symptoms of an eversion trauma include:

Pain on the inner side of the ankle joint
Swelling and hematoma (bruising) around the medial ligament complex
Restricted range of motion in the ankle
A sense of instability when standing or walking
Tenderness on palpation over the deltoid ligament or medial malleolus

Diagnosis

The diagnosis of an eversion trauma is based on a combination of clinical examination and imaging:

Clinical examination: The physician assesses pain, swelling, joint stability, and range of motion. Specific tests such as the valgus stress test help evaluate the integrity of the medial ligaments.
X-ray: Used to rule out fractures, especially when guided by the Ottawa Ankle Rules.
Ultrasound: Allows real-time assessment of ligament structures.
MRI (Magnetic Resonance Imaging): Provides detailed visualization of ligaments, tendons, and cartilage in complex or unclear cases.

Treatment

Conservative Treatment

Most eversion traumas are managed conservatively. During the acute phase, the RICE protocol is applied:

Rest: Immobilization and reduced weight-bearing
Ice: Cold application to reduce swelling and pain
Compression: Application of a compression bandage
Elevation: Elevating the leg to promote venous return

In the following rehabilitation phase, treatment may include:

Physiotherapy to restore strength, mobility, and proprioception
Taping or orthopedic bracing to provide joint support
Pain management using non-steroidal anti-inflammatory drugs (NSAIDs)

Surgical Treatment

Complete ligament ruptures, associated fractures, or persistent joint instability may require surgical intervention. Options include ligament repair, ligament reconstruction, or fixation of bony fragments.

Prognosis and Prevention

Recovery time from an eversion trauma varies from a few weeks to several months depending on severity. Preventive measures include appropriate footwear, regular proprioceptive and strengthening exercises, and prophylactic taping during sports activities.

References

Kerkhoffs GM et al. - Diagnosis, treatment and prevention of ankle sprains: update of an evidence-based clinical guideline. British Journal of Sports Medicine, 2012; 46(12): 854-860. PubMed PMID: 22522586.
Doherty C et al. - The Incidence and Prevalence of Ankle Sprain Injury: A Systematic Review and Meta-Analysis of Prospective Epidemiological Studies. Sports Medicine, 2014; 44(1): 123-140. PubMed PMID: 24105612.
World Health Organization (WHO). International Classification of Diseases (ICD-11). Geneva: WHO, 2022.

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