Anterior Interosseous Nerve Syndrome
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|Anterior Interosseous Nerve Syndrome|
|Pathophysiology||Entrapment of the anterior interosseous nerve, most commonly ~5-8cm distal to the medial epicondyle.|
|Clinical Features||Pure motor palsy affecting pollicis longus, flexor digitorum profundus, pronator quadratus.|
Pure motor palsy. There is difficulty making an "OK" sign with thumb and forefinger opposition. It is distinguished from pronator syndrome by the complete absence of a sensory deficit.
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