Cubital tunnel syndrome
Cubital tunnel consists of – lig. collaterale ulnare (bottom), medial epicondyle of the humerus, olecranon and the aponeurosis of the flexor carpi ulnaris muscle.
In general, there is an enlargement of the surrounding structures and oppression of the ulnar nerve. The most common causes are:
- after fractures - a hypertrophic muscle develops
- prfessional load - long term elbow flexion (glass grinders)
- Clinical manifestations
- Tingling of the 4th and 5th fingers, numbness of the fingers, often even paresis and atrophy
- typical difficulties – when fastening a belt, turning on a zipper, a button
- in severe cases – claw-like hand and paralysis of the interosseous muscles
- operative – deliberation and transposition of the nerve in front of the medial epicondyle
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