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Elbow and Forearm - Case 14 (3rd ed)
Elbow and Forearm - Case 14 (3rd ed)
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Pdf Summary
The provided document contains two study questions related to the anatomical structure and clinical examination of the ulnar nerve. <strong>Study Question #1</strong> addresses the composition of the cubital tunnel, where the ulnar nerve is often compressed at the elbow. It asks which anatomical structure is not part of the borders of this region. The correct answer is: <strong>B. Heads of the flexor carpi ulnaris</strong>. The cubital tunnel's structure includes the medial epicondyle and the olecranon as "walls," Osbourne’s ligament as the "roof," and the posterior oblique and transverse bands of the medial collateral ligament as the "floor." Post tunnel, the ulnar nerve passes between the ulnar and humeral heads of the flexor carpi ulnaris but is not bounded by them within the cubital tunnel. <strong>Study Question #2</strong> discusses clinical findings related to ulnar neuropathy at the elbow or wrist. It asks which test or finding is not associated with ulnar neuropathy. The answer is: <strong>D. Milking maneuver</strong>. The milking maneuver assesses the ulnar collateral ligament, rather than indicating ulnar neuropathy. Other signs and tests, such as the Froment sign, Wartenberg sign, Duchenne sign, and the elbow flexion test, are related to symptoms or diagnostic processes for ulnar neuropathy, which can include thumb pinch weakness, fifth finger adduction weakness, clawing of the fourth or fifth digits, and pain or paresthesias upon specific movement tests, respectively. These questions and answers aid in understanding how to diagnose and assess the impacts of ulnar nerve compression.
Meta Tag
Edition
3rd Edition
Related Case
3rd Edition, CASE 14
Topic
Elbow and Forearm
Keywords
ulnar nerve
cubital tunnel
anatomical structure
clinical examination
ulnar neuropathy
flexor carpi ulnaris
medial epicondyle
Osbourne’s ligament
milking maneuver
elbow flexion test
3rd Edition
3rd Edition, CASE 14
Elbow and Forearm
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