These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Lumbrical sparing in carpal tunnel syndrome: anatomic, physiologic, and diagnostic implications.
    Author: Logigian EL, Busis NA, Berger AR, Bruyninckx F, Khalil N, Shahani BT, Young RR.
    Journal: Neurology; 1987 Sep; 37(9):1499-505. PubMed ID: 3627450.
    Abstract:
    Motor axons supplying lumbrical muscles are less severely affected than axons supplying thenar muscles in the carpal tunnel syndrome; sometimes lumbrical motor fibers are less affected than digit 2 sensory fibers. This pattern is consistent with compression of both the anterior and posterior aspects of the median nerve in the carpal tunnel because nerve fibers responsible for thenar, lumbrical, and digit 2 functions lie in an anterior-posterior gradient within the distal median nerve. Recognition of lumbrical sparing supports the electrodiagnosis of carpal tunnel syndrome when the distal latency to thenar muscles or the palm-to-wrist mixed median nerve conduction velocity is normal.
    [Abstract] [Full Text] [Related] [New Search]