Document Detail

Pronator syndrome and anterior interosseous nerve syndrome.
MedLine Citation:
PMID:  23637145     Owner:  NLM     Status:  In-Data-Review    
Dysfunction of the median nerve at the elbow or proximal forearm can characterize two distinct clinical entities: pronator syndrome (PS) or anterior interosseous nerve (AIN) syndrome. PS is characterized by vague volar forearm pain, with median nerve paresthesias and minimal motor findings. AIN syndrome is a pure motor palsy of any or all of the muscles innervated by that nerve: the flexor pollicis longus, the flexor digitorum profundus of the index and middle fingers, and the pronator quadratus. The sites of anatomic compression are essentially the same for both disorders. Typically, the findings of electrodiagnostic studies are normal in patients with PS and abnormal in those with AIN syndrome. PS is a controversial diagnosis and is typically treated nonsurgically. AIN syndrome is increasingly thought to be neuritis and it often resolves spontaneously following prolonged observation. Surgical indications for nerve decompression include persistent symptoms for >6 months in patients with PS or for a minimum of 12 months with no signs of motor improvement in those with AIN syndrome.
Craig M Rodner; Brian A Tinsley; Michael P O'Malley
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the American Academy of Orthopaedic Surgeons     Volume:  21     ISSN:  1067-151X     ISO Abbreviation:  J Am Acad Orthop Surg     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-05-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9417468     Medline TA:  J Am Acad Orthop Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  268-75     Citation Subset:  IM    
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