%0 Journal Article
%T Palmar Digital Neuropathy With Anatomical Variation of Median Nerve: Usefulness of Orthodromic Technique: A Case Report
%A Hee-Kyu Kwon
%A Jong Woong Park
%A Jun Soo Noh
%J Archive of "Annals of Rehabilitation Medicine".
%D 2019
%R 10.5535/arm.2019.43.3.341
%X Anatomic variation of palmar digital nerve pathways were reported in several cases. Selective exploration of palmar digital nerves with a nerve conduction study has been challenging, because of technical issues. We report a patient who received bilateral carpal tunnel release operation, complaining of a tingling sensation, and hypoesthesia on the middle and ring fingers. An electrodiagnostic study revealed a sensory neuropathy of palmar digital nerve of the left median nerve, supplying the ulnar side of the middle finger, and radial side of the ring finger. She underwent re-operation of open left carpal tunnel release, and a branching site of common digital nerves of the median nerve was identified not at the palm, but at a far proximal site around the distal wrist crease. Usefulness of an orthodromic sensory conduction study was clarified to eliminate volume conducted response or co-activation of nearby nerves in the patient with selective involvement of palmar digital nerve
%K Median nerve
%K Electrodiagnosis
%K Carpal tunnel syndrome
%K Median neuropathy
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6637065/