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anterior interosseous nerve syndrome; Kiloh-Nevin syndrome
Etiology:
- transient neuritis (most common) [1]
- compression of the anterior interosseous nerve
- primary nerve tumor or nerve sheath tumor
- ganglion cyst
- osseous spur
- anatomical variants [2]
- trauma to the median nerve
Pathology:
- damage to the anterior interosseous nerve, a motor branch of the median nerve
Clinical manifestations:
- pain in the forearm
- weakness of the pincer movement of the thumb & index finger
Special laboratory:
- electromyography
- abnormalities in the flexor pollicis longus, flexor digitorum profundus 1 & 2 & pronator quadratus
Radiology:
- ultrasound or magnetic resonance imaging for suspected entrapment neuropathy
Management:
- surgical decompression for entrapment neuropathy
General
syndrome
entrapment neuropathy; nerve entrapment syndrome; pinched nerve
References
- Wikipwdia: Anterior interosseous syndrome
http://en.wikipedia.org/wiki/Anterior_interosseous_syndrome
- Jones J and Gaillard F
Anterior interosseous nerve syndrome
http://radiopaedia.org/articles/anterior-interosseous-nerve-syndrome-1
- Saunders Manual of Medical Practice, Rakel (ed),
WB Saunders, Philadelphia, 1996, pg 742