What causes sparing of the flexor carpi ulnaris in ulnar neuropathy?

Updated: Jun 08, 2018
  • Author: Charles F Guardia, III, MD; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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Answer

It is not uncommon for the flexor carpi ulnaris to be spared in ulnar lesions near the elbow, especially in lower (more distal) lesions close to the elbow. Sparing occurs because the branch to the flexor carpi ulnaris splits off from the main trunk before (ie, above or proximal to) the compression. [104]


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