What is the role of the flexor carpi ulnaris and the flexor digitorum profundus in the pathogenesis of ulnar neuropathy?

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

Sunderland described the internal topography of the ulnar nerve at the medial epicondyle. [54] The sensory fibers and intrinsic muscle nerve fibers are located superficially. In contrast, the motor fibers to the flexor carpi ulnaris and the flexor digitorum profundus are located deep within the nerve. [55, 56, 57] The central location protects the motor fibers and explains why weakness of these two muscles is not typically seen in ulnar neuropathy. [58, 59, 28, 60]


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!