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The all ulnar motor hand without forearm anastomosis
Author(s) -
Sachs George M.,
Raynor Elizabeth M.,
Shefner Jeremy M.
Publication year - 1995
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.880180307
Subject(s) - forearm , medicine , anatomy , anastomosis , hand muscles , ulnar artery , ulnar neuropathy , ulnar nerve , physical medicine and rehabilitation , surgery , elbow , artery , radial artery
Anomalous ulnar innervation of intrinsic hand muscles, inferred in a number of clinical series, has been documented only rarely in electrophysiological studies. Using near‐nerve and standard conduction studies we evaluated 2 cases with nearly exclusive ulnar innervation of hand muscles. There was no evidence of anomalous communication in the forearm. Digital sensory fibers were normally distributed in median and ulnar nerves. The anomalous motor innervation most likely results from palmar communication between ulnar and median branches (Riche‐Cannieu anastomoses). The normal distribution of digital afferents suggests that such anastomoses are formed primarily by motor axons.© 1995 John Wiley &Sons, Inc.