Ultrasonographic evaluation of the median nerve: normal and variant anatomy and
            appearance

Nulle, Kitija; Jaudzema, Aija

doi:10.15557/jou.2021.0053

Cited by 3 publications

(2 citation statements)

References 15 publications

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“… 11 12 When Struthers' ligament (an anatomical variation found in 1–3% of the population) is present, the MN passes behind it, possibly a further potential compression site. 13 14 …”

Section: Median Nervementioning

confidence: 99%

Anatomical Variants of the Upper Limb Nerves: Clinical and Preoperative Relevance

Schwabl

Hörmann

Strolz

et al. 2023

Semin Musculoskelet Radiol

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Profound knowledge of nerve variations is essential for clinical practice. It is crucial for interpreting the large variability of a patient's clinical presentation and the different mechanisms of nerve injury. Awareness of nerve variations facilitates surgical safety and efficacy. Clinically significant anatomical variations can be classified into two main groups: variability in the course of the nerve and variability of structures surrounding the nerve. In this review article we focus on the most common nerve variants of the upper extremity and their clinical relevance.

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“… 11 12 When Struthers' ligament (an anatomical variation found in 1–3% of the population) is present, the MN passes behind it, possibly a further potential compression site. 13 14 …”

Section: Median Nervementioning

confidence: 99%

Anatomical Variants of the Upper Limb Nerves: Clinical and Preoperative Relevance

Schwabl

Hörmann

Strolz

et al. 2023

Semin Musculoskelet Radiol

View full text Add to dashboard Cite

show abstract

“…This, in turn, contrasts well with more surrounding hypoechoic structures such as healthy muscle, making it easier to visualize on US in these areas. 14 Most research that involves US measurements of the median nerve utilizes cross-sectional area (CSA) in subjects with nerve pathology. Pathology commonly occurs in the form of edema or inflammation of the nerve from compression, disease, or trauma.…”

mentioning

confidence: 99%

Assessing the Effects of Scapular Positioning on the Morphology of the Median Nerve During Upper Limb Tension Test 1 (ULTT1)

Vogel

Ashley

Pandya

et al. 2022

Journal of Diagnostic Medical Sonography

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Objective: The upper limb tension test 1 (ULTT1) is commonly used by physical therapists for patients with complaints of radiating symptoms in their upper extremity following the path of the median nerve. Clinicians typically perform similar testing positions for patients, except for scapular position, which may vary between scapular blocking and scapular depression. This may alter the test results based on this positioning. The purpose of this study was to determine if there is a significant difference in median nerve morphology during the ULTT1 between resting and two scapular testing positions. Materials and Methods: Thirty healthy participants, 18 to 65 years of age, were tested using the ULTT1 in both blocked and depressed scapular positions. The height and width of the median nerve were measured by diagnostic sonography. Paired t tests were utilized to compare baseline, blocked, and depressed scapular positions with the ULTT1. Results: No statistically significant difference in height or width was found between resting, blocked, or depressed scapular positioning. Conclusion: There were inconclusive results regarding the morphology of the median nerve in this study. Key Takeaways Inconclusive results on nerve morphology comparing two scapular positions during the ULTT1. Research may be conducted on symptomatic patients to assist with more reliable test findings related to ULTT1.

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Variation of the brachial artery emerging through an opening in the median nerve: a case report

Rutkowski

Howe

2023

Surg Radiol Anat

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The median nerve maintains a close relationship with the brachial artery in the upper limb. Variability in the formation and distribution of these vessels are frequently encountered during donor body dissections or surgical procedures. This case presents a rare anatomical variation of the brachial artery emerging through an opening in the median nerve. The median nerve formed a small opening without the contribution from additional nerve roots and the remaining vasculature of the upper limb was otherwise normal. An abnormal arrangement of neurovasculature in the arm can cause sensory and motor issues, as well as vascular implications. This variation has clinical signi cance in surgical interventions and potentially daily functioning. To our knowledge, this is the rst report of a small median nerve opening pierced by the brachial artery.

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Ultrasonographic evaluation of the median nerve: normal and variant anatomy and appearance

Cited by 3 publications

References 15 publications

Anatomical Variants of the Upper Limb Nerves: Clinical and Preoperative Relevance

Anatomical Variants of the Upper Limb Nerves: Clinical and Preoperative Relevance

Assessing the Effects of Scapular Positioning on the Morphology of the Median Nerve During Upper Limb Tension Test 1 (ULTT1)

Variation of the brachial artery emerging through an opening in the median nerve: a case report

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