• Users Online: 322
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
ORIGINAL ARTICLE
Year : 2013  |  Volume : 40  |  Issue : 2  |  Page : 107-113

Intranerve ratio and ultrasonography reliability in increasing the diagnostic sensitivity of minimal ulnar nerve entrapment at the elbow


1 Department of Rheumatology and Rehabilitation, Faculty of Medicine, University of Zagazig, Sharkia, Egypt
2 Department of Radiodiagnosis, Faculty of Medicine, University of Zagazig, Sharkia, Egypt

Correspondence Address:
Ghada S. Nageeb
MD, Department of Rheumatology and Rehabilitation, Faculty of Medicine, University of Zagazig, Sharkia
Egypt
Login to access the Email id

Source of Support: None, Conflict of Interest: None


Rights and PermissionsRights and Permissions

Objective The aim of this study was to detect the role of intranerve ratio (IN-ratio) and high-resolution ultrasonography (HRUS) in increasing the diagnostic sensitivity of minimal ulnar nerve entrapment (UNE) at the elbow. Methods This study included 39 patients having clinical and electrophysiological evidence of UNE, 27 patients having only clinical evidence of UNE, and 28 apparently healthy volunteers. IN-ratios were calculated and HRUS of the ulnar nerve were performed for all individuals. Results The IN-ratio was significantly decreased in group II when compared with other groups. The cutoff value was 0.98 or less for IN-ratio and 10mm 2 or more for maximum crosssectional area (CSA-max). In group II, the CSA-max values were significantly increased in patients with positive IN-ratios ( 0.98) compared with those with negative IN-ratios (40.98). There was a significant negative correlation between IN-ratios and CSA-max values. Positive decreased IN-ratios (0.98) were detected in 26 patients. IN-ratios of 0.98 or less were more frequently observed in patients of group II compared with other groups. Moreover, a higher incidence of positive IN-ratios (0.98) along with positive CSA-max (≥10mm 2 ) values was observed among patients of group II compared with other groups. Sensitivity and specificity of IN-ratios in diagnosing UNE electrophysiological (UNE EF)- patients were 66 and 82%, respectively. Using both IN-ratios (0.98) and CSA-max (≥10mm 2 ) increased the diagnostic sensitivity and specificity of UNE to 85 and 94%, respectively. Conclusion When IN-ratio and HRUS (CSA-max) findings are positive, the patient could be classified as having 'minimal UNE'. Recommendation Using this new electrophysiological test along with CSA-max as a routine screening test for minimal cases of UNE is beneficial.


[PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed471    
    Printed5    
    Emailed0    
    PDF Downloaded72    
    Comments [Add]    

Recommend this journal