Relationship Between Electrodiagnosis and Various Ultrasonographic Findings for Diagnosis of Carpal Tunnel Syndrome.

Content Provider	Europe PMC
Author	Lee, Kyoung Moo Kim, Hyo Jong
Copyright Year	2016
Abstract	ObjectiveTo investigate the relationship between electrodiagnosis and various ultrasonographic findings of carpal tunnel syndrome (CTS) and propose the ultrasonographic standard that has closest consistency with the electrodiagnosis.MethodsUltrasonography was performed on 50 female patients (65 cases) previously diagnosed with CTS and 20 normal female volunteers (40 cases). Ultrasonography parameters were as follows: cross-sectional area (CSA) and flattening ratio (FR) of the median nerve at the levels of hamate bone, pisiform bone, and lunate bone; anteroposterior diameter (AP diameter) of the median nerve in the carpal tunnel; wrist to forearm ratio (WFR) of median nerve area at the distal wrist crease and 12 cm proximal to distal wrist crease; and compression ratio (CR) of the median nerve. Independent t-test was performed to compare the ultrasonographic findings between patient and control groups. Significant ultrasonographic findings were compared with the electrodiagnosis results and a kappa coefficient was used to determine the correlation.ResultsCSA and FR of median nerve at the hamate bone level, CSA of median nerve at pisiform bone level, AP diameter of median nerve within the carpal tunnel, CSA of median nerve at the distal wrist crease and WFR showed significant differences between patient and control groups. WFR showed highest concordance with electrodiagnosis (κ=0.71, p<0.001).ConclusionThese findings suggested the applicability of ultrasonography, especially WFR, as a useful adjunctive tool for diagnosis of CTS.
ISSN	22340645
Journal	Annals of Rehabilitation Medicine
Volume Number	40
PubMed Central reference number	PMC5256317
Issue Number	6
PubMed reference number	28119834
e-ISSN	22340653
DOI	10.5535/arm.2016.40.6.1040
Language	English
Publisher	Korean Academy of Rehabilitation Medicine
Publisher Date	2016-12-30
Access Restriction	Open
Rights License	This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright © 2016 by Korean Academy of Rehabilitation Medicine
Subject Keyword	Carpal tunnel syndrome Diagnosis Electrodiagnosis Median nerve Ultrasonography
Content Type	Text
Resource Type	Article
Subject	Rehabilitation