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Related Experiment Videos

Pressures recorded in ulnar neuropathy.

C O Werner, P Ohlin, D Elmqvist

    Acta Orthopaedica Scandinavica
    |October 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Ulnar neuropathy at the elbow involves high pressure on the ulnar nerve within the flexor carpi ulnaris muscle arcade. This pressure significantly increases with elbow flexion and muscle contraction.

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    Area of Science:

    • Orthopedics
    • Neurology
    • Anatomy

    Background:

    • Ulnar neuropathy at the elbow is a common condition.
    • The flexor carpi ulnaris muscle's arcade is a potential site for ulnar nerve compression.

    Purpose of the Study:

    • To measure the pressure on the ulnar nerve at the flexor carpi ulnaris arcade in patients with ulnar neuropathy.
    • To investigate how elbow position and muscle activity affect this pressure.

    Main Methods:

    • Peroperative pressure measurements were taken in ten patients.
    • Patients had electrophysiologically confirmed ulnar neuropathy at the elbow.

    Main Results:

    • At rest with the elbow extended, pressures ranged from 0 to 19 mm Hg.

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  • Pressures increased significantly in elbow flexion and during isometric contraction of the flexor carpi ulnaris muscle, reaching over 200 mm Hg.

    • Conclusions:

    • The flexor carpi ulnaris arcade exerts significant pressure on the ulnar nerve, especially during flexion and contraction.
    • These findings highlight the arcade as a critical area for ulnar nerve compression in neuropathy.