Abstract
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.
Original language | English |
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Pages (from-to) | 341-346 |
Number of pages | 6 |
Journal | Annals of Rehabilitation Medicine |
Volume | 43 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2019 Jun 1 |
Keywords
- Carpal tunnel syndrome
- Electrodiagnosis
- Median nerve
- Median neuropathy
ASJC Scopus subject areas
- Rehabilitation