ASSESSMENT OF THE ULNAR NERVE STIFFNESS DURING VALGUS STRESS OF THE ELBOW USING SHEAR WAVE ELASTOGRAPHY: AN OBSERVATIONAL CROSS-SECTIONAL STUDY

This observational study investigated ulnar nerve stiffness in 20 healthy baseball players during maximum external rotation of the shoulder. Shear wave elastography assessed nerve stiffness at two entrapment sites: the arcade of Struthers (proximal) and Osborne’s ligament (distal) at various elbow flexion angles (0°, 60°, 90°). Valgus stress applied to the medial elbow showed increased nerve stiffness, particularly at 70 N compared to lower stress levels. Proximally, stiffness was notably higher than distally. These findings underscore the impact of valgus stress on ulnar nerve mechanics, crucial for preventing and managing ulnar neuropathies.

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Quiz Fifty Six

1 / 5

What is the primary focus of using shear wave elastography in this study?

To perform a biopsy of the ulnar nerve

To visualize the anatomical structure of the elbow

To assess stiffness of the ulnar nerve

To measure blood flow in the ulnar nerve

2 / 5

What type of study design is used in this research?

Observational Cross-Sectional Study

Cohort Study

Case-Control Study

Randomized Controlled Trial

3 / 5

What imaging technique is used to assess the ulnar nerve stiffness?

Doppler Ultrasound

Shear Wave Elastography

CT Scan

MRI

4 / 5

What type of stress is applied to the elbow during the assessment?

Valgus Stress

Flexion Stress

Extension Stress

Varus Stress

5 / 5

What anatomical structure is being assessed for stiffness in this study?

Brachial Artery

Median Nerve

Ulnar Nerve

Radial Nerve

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