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Ultrasound Diagnosis of Calf Injuries.


ABSTRACT:

Context

The medial head of the gastrocnemius is the third most commonly strained muscle in elite athletes after the biceps femoris and rectus femoris. The differential diagnosis of posterior calf injury includes musculoskeletal and nonmusculoskeletal causes. Classically, delineation of these injuries from one another relied primarily on historical features and physical examination findings. The utilization of musculoskeletal ultrasound (sonography) has augmented the diagnosis of these injuries by providing dynamic, real-time confirmation.

Evidence acquisition

A review of PubMed, OVID, and MD Consult prior to January 2016 was performed using search terms, including s oleus ultrasound, gastrocnemius ultrasound, and tennis leg. The references of the pertinent articles were further reviewed for other relevant sources.

Study design

Clinical review.

Level of evidence

Level 4.

Results

There have been few reviews to date of calf injuries and the use of sonography in their diagnosis. Prompt diagnosis utilizing ultrasound allows the clinician to focus management on gastrocnemius injury if present. Two-thirds of calf injuries occur at the junction of the fascia between the medial head of the gastrocnemius and the soleus. Injuries to the lateral head of the gastrocnemius occur in up to 14% of patients in some case series, but injury may occur anywhere from the proximal origin to the mid-belly to the fascial junction with the soleus. Numerous injuries to the posterior compartment can mimic gastrocnemius strain, and musculoskeletal ultrasound can aide in their diagnosis by incorporating real-time imaging into the grading of the injury and visual confirmation of physical examination findings.

Conclusion

Acute injury to the posterior compartment of the lower extremity can represent a diagnostic challenge. Medial gastrocnemius strain represents the most common injury of the posterior compartment of the lower extremity. Ultrasound is a useful tool to assist the clinician in determining the specific cause of calf injury, estimate the severity of the injury, and monitor progress of healing. The vast majority of calf injuries can be diagnosed and managed without any additional imaging. Serial diagnostic ultrasound of an injured area allows for direct monitoring of tissue healing and may allow the clinician to more confidently assess response to treatment and help guide return-to-play decisions.

SUBMITTER: Bright JM 

PROVIDER: S-EPMC5496702 | biostudies-literature | 2017 Jul/Aug

REPOSITORIES: biostudies-literature

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Publications

Ultrasound Diagnosis of Calf Injuries.

Bright Jacob Michael JM   Fields Karl B KB   Draper Ryan R  

Sports health 20170310 4


<h4>Context</h4>The medial head of the gastrocnemius is the third most commonly strained muscle in elite athletes after the biceps femoris and rectus femoris. The differential diagnosis of posterior calf injury includes musculoskeletal and nonmusculoskeletal causes. Classically, delineation of these injuries from one another relied primarily on historical features and physical examination findings. The utilization of musculoskeletal ultrasound (sonography) has augmented the diagnosis of these in  ...[more]

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